1.6µA 25V 6mA DC/DC 特長 n n 2.4V 25V 1V 25V EXT n 1V 25V n LTC 313 n 4 LTC313-1 n Burst Mode 1.2µA = 12V = 5V n 6mA n 85mA/45mA LTC313 n 95% n Burst Mode n PWM 1.2MHz n n n n I Q 5nA n 2 3mm 4mm QFN 16 MSOP アプリケーション n n n n / 概要 Burst Mode 1.6µA 7.5µW 1.2MHz PWM LTC313-1 4 LTC313 LTC313-1 3mm 4mm 2 QFN 16 MSOP L LT LTC LTM Linear Technology Linear Burst Mode PowerPath 標準的応用例 4 Li-Ion µf BST1 P VS1 VS2 SW1 6.8µH LTC313-1 SW2 P BST2 EXT 313 TA1a µf 12V 6mA EFFICIENCY (%) 9 8 7 6 5 4 3 2 = 14.4V, = 12V.1.1 1 8 LOAD (ma) 313 TA1b 313f 1
絶対最大定格 Note 1 8 P...3V 27.5V EXT...3V 27.5V BST1 BST2... SW.3V SW 6V...3V 27.5V....3 6V VS1 VS2 LTC313-1....3 6V ILIM FB LTC313....3 6V...12mA Note 2 5 6...4 C 125 C...65 C 15 C MSE... 3 C ピン配置 TOP VIEW BST1 P 1 2 3 4 5 6 SW1 P P NC 2 19 18 17 7 8 21 9 VS2/FB VS1/ILIM UDC PACKAGE 2-LEAD (3mm 4mm) PLASTIC QFN T JMAX = 125 C, θ JA = 52 C/W, θ JC = 6.8 C/W (NOTE 6) EXPOSED PAD (PIN 21) IS, MUST BE SOLDERED TO PCB 16 15 14 13 12 11 BST2 SW2 EXT BST1 SW1 P 1 2 3 4 5 6 7 8 TOP VIEW 17 16 15 14 13 12 11 9 SW2 BST2 EXT VS1/ILIM VS2/FB MSE PACKAGE 16-LEAD PLASTIC MSOP T JMAX = 125 C, θ JA = 4 C/W, θ JC = C/W (NOTE 6) EXPOSED PAD (PIN 17) IS, MUST BE SOLDERED TO PCB 発注情報 http://www.linear-tech.co.jp/product/ltc313#orderinfo * LTC313EUDC#PBF LTC313EUDC#TRPBF LGTS 2-Lead (3mm 4mm) Plastic QFN 4 C to 125 C LTC313EUDC-1#PBF LTC313EUDC-1#TRPBF LGTT 2-Lead (3mm 4mm) Plastic QFN 4 C to 125 C LTC313IUDC#PBF LTC313IUDC#TRPBF LGTS 2-Lead (3mm 4mm) Plastic QFN 4 C to 125 C LTC313IUDC-1#PBF LTC313IUDC-1#TRPBF LGTT 2-Lead (3mm 4mm) Plastic QFN 4 C to 125 C LTC313EMSE#PBF LTC313EMSE#TRPBF 313 16-Lead Plastic MSOP 4 C to 125 C LTC313EMSE-1#PBF LTC313EMSE-1#TRPBF 3131 16-Lead Plastic MSOP 4 C to 125 C LTC313IMSE#PBF LTC313IMSE#TRPBF 313 16-Lead Plastic MSOP 4 C to 125 C LTC313IMSE-1#PBF LTC313IMSE-1#TRPBF 3131 16-Lead Plastic MSOP 4 C to 125 C * http://www.linear-tech.co.jp/leadfree/ http://www.linear-tech.co.jp/tapeandreel/. #TRMPBF 5 2 313f
電気的特性 lt A = 25 C Note 2 P = = 12V = 5V PARAMETER CONDITIONS MIN TYP MAX UNITS Start-Up Voltage EXT = V EXT > 3.15V, > 1.1V Input Voltage Range EXT > 3.15V, > 1.1V l.6 25 V Output Voltage Adjust Range (LTC313) l 1. 25 V Feedback Voltage (LTC313) For External FB Resistor Applications l.975 1. 1.2 V From 4 C to 85 C (Note 3).98 1. 1.2 V Feedback Input Current (LTC313) FB = 1.1V.1 na Fixed Voltages (LTC313-1) VS1 = VS2 = V VS1 =, VS2 = V VS1 = V, VS2 = VS1 = VS2 = l l l l 1.75 3.2 4.85 11.64 1.8 3.3 5. 12. 1.85 3.39 5.125 12.3 V V V V Quiescent Current Shutdown <.2V 5 85 na Quiescent Current UVLO.85V < <.9V, EXT = V 1.4 2.4 µa Quiescent Current Burst Mode Operation (Sleeping) FB > 1.2V (LTC313), > V REG (LTC313-1), = V, =, > 1.5V l l 2.3.6 2.4 1. V V 1.6 2.7 µa NMOS Switch Leakage on and SW1 = SW2 = V, = = 25V 5 na NMOS Switch On-Resistance = 4V.35 Ω Inductor Average Current Limit LTC313-1 (Note 4), LTC313: ILIM = (Note 4) l 66 85 12 ma LTC313: ILIM = V (Note 4) l 25 45 65 ma Inductor Peak Current Limit LTC313-1 (Note 4), LTC313: ILIM = (Note 4) l.9 1.3 1.7 A LTC313: ILIM = V (Note 4) l.6.85 1.15 A Maximum Boost Duty Cycle LTC313-1: < V REG (Note 7), l 91 94 97 % (Percentage of Period SW2 is Low) LTC313: FB <.975V (Note 7) Minimum Duty Cycle LTC313-1: > V REG (Note 7), l % LTC313: FB > 1.2V (Note 7) Switching Frequency l 1. 1.2 1.4 MHz SW1 and SW2 Minimum Low Time (Note 3) 7 ns Reference Voltage l.95 1. 1.5 V Input Current = 5V 1 2 na Logic Threshold to Enable Reference l.2.6.85 V Threshold to Enable Switching (Rising) > 2.4V or EXT > 3.15V l 1.1 1.5 1.9 V Threshold Hysteresis l 9 1 mv Input Current = 25V = 1V ILIM Input Logic High (LTC313) l 1.1 V ILIM Input Logic Low (LTC313) l.35 V ILIM Input Current (LTC313) ILIM = 5V 1 2 na VS1, VS2 Input Logic High (LTC313-1) l 1.1 V VS1, VS2 Input Logic Low (LTC313-1) l.35 V VS1, VS2 Input Current (LTC313-1) VS1, VS2 = 5V 1 2 na Input Logic High l 1.1 V Input Logic Low l.35 V Input Current = 5V (If is Low or is in UVLO) = 5V (If Switching is Enabled) 1 1.7 2 4 na µa 1.1 3 5 na na 313f 3
電気的特性 lt A = 25 C Note 2 P = = 12V = 5V PARAMETER CONDITIONS MIN TYP MAX UNITS Soft-Start Time For Average Inductor Current to Reach Limit 12 ms Voltage (EXT or ) > 4.7V, >.85V 4 V Voltage - Shutdown.2V 3.25 V Dropout Voltage ( ) = 3.V, Switching 5 mv Current Limit = V 17 34 ma UVLO Threshold (Rising) l 2.2 2.3 2.4 V UVLO Hysteresis 12 135 mv EXT Enable Threshold l 2.85 3. 3.15 V EXT Enable Hysteresis 26 mv EXT Input Operating Range l 3.15 25 V EXT Quiescent Current Burst Mode Operation (Sleeping) EXT > 3.15V, FB >1.2V (LTC313), > 1.5V > V REG (LTC313-1), = V, > 1.V 1.6 2.5 µa EXT Quiescent Current Shutdown EXT = 5V, <.2V 4 75 na EXT Current Limit = V, EXT = 15V 32 68 ma Sleep Current When Powered by EXT FB > 1.2V (LTC313), > V REG (LTC313-1), EXT > 3.15V, = V, >1.V, = 12V, > 1.5V 6 na UV Threshold Rising l.35.7.95 V UV Hysteresis 55 mv Quiescent Current Shutdown ( 1) 27 Quiescent Current Burst Mode Operation (Sleeping) = V, FB > 1.2V, > 1.5V ( 1) 27 Threshold, Rising Referenced to Programmed Voltage -7. -5. -3. % Hysteresis Referenced to Programmed Voltage 2.5 % Voltage Low I SINK = 1mA 165 25 mv Leakage = 25V 1 5 na ( ) 17 ( ) 17 µa µa Note 1 Note 2 T J T A LTC313E/LTC313E-1 C 85 C 4 C 125 C LTC313I/LTC313I-1 4 C 125 C T J T A P D T J = T A (P D θ JA C/W). θ JA Note 3 Note 4 Note 5 165 C Note 6 PC Note 7 Note 8: DC SW 4 313f
標準的性能特性 T A = 25 C EFFICIENCY (%) OUT = 1.8V PWM = 3.3V PWM OUT = 5V PWM = 2.5V = 2.5V = 2.5V 9 = 3.6V 9 = 3.6V 9 = 3.6V 8 = 5V = 12V 8 = 5V = 12V 8 = 5V = 12V 7 = 24V 7 = 24V 7 = 24V 6 5 4 3 2.1.1 1 1k LOAD CURRENT (ma) 313 G1 EFFICIENCY (%) 6 5 4 3 2.1.1 1 1k LOAD CURRENT (ma) 313 G2 EFFICIENCY (%) 6 5 4 3 2.1.1 1 1k LOAD CURRENT (ma) 313 G3 EFFICIENCY (%) OUT = 12V PWM = 2.5V 9 = 3.6V V 8 IN = 5V = 12V 7 = 24V 6 5 4 3 2.1.1 1 1k LOAD CURRENT (ma) 313 G4 EFFICIENCY (%) = 1.8V Burst OUT Mode LTC313-1 9 8 7 6 5 4 3 = 2.5V 2 = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) 313 G5 POWER LOSS (mw) = 1.8V Burst OUT Mode LTC313-1 1k 1.1.1.1 = 2.5V = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) 313 G6 EFFICIENCY (%) = 3.3V Burst OUT Mode LTC313-1 9 8 7 6 5 4 3 = 2.5V 2 = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) 313 G7 POWER LOSS (mw) = 3.3V Burst OUT Mode LTC313-1 1k 1.1 = 2.5V = 3.6V.1 = 5V = 12V = 24V.1.1.1 1 1k LOAD CURRENT (ma) 313 G8 EFFICIENCY (%) = 5V Burst OUT Mode LTC313-1 9 8 7 6 5 4 3 = 2.5V 2 = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) 313 G9 313f 5
標準的性能特性 T A = 25 C POWER LOSS (mw) EFFICIENCY (%) EFFICIENCY (%) 6 = 5V Burst OUT Mode LTC313-1 1k 1.1.1.1.1.1 1 1k LOAD CURRENT (ma) = 8V PWM OUT LTC313 = 2.5V 9 = 3.6V V 8 IN = 5V = 12V 7 = 24V 6 5 4 3 2 V = 15 = 15V LTC313 = 2.5V = 3.6V = 5V = 12V = 24V 313 G.1.1 1 1k LOAD CURRENT (ma) 9 8 7 6 5 4 3 2 313 G13.1.1 1 1k LOAD CURRENT (ma) Burst Mode OPERATION: = 3.6V = 5V = 12V = 24V 313 G16 PWM: = 3.6V = 5V = 12V = 24V EFFICIENCY (%) EFFICIENCY (%) POWER LOSS (mw) = 12V Burst OUT Mode LTC313-1 9 8 7 6 5 4 3 = 2.5V 2 = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) = 8V Burst Mode LTC313 OUT 9 8 7 6 5 4 = 15V Burst Mode LTC313 OUT 1k 313 G11 3 = 2.5V 2 = 3.6V = 5V = 12V = 24V.1.1 1 1k LOAD CURRENT (ma) 313 G14 1 = 3.6V = 5V = 12V = 24V.1.1.1 1 1k LOAD CURRENT (ma) 313 G17 POWER LOSS (mw) POWER LOSS (mw) EFFICIENCY (%) = 12V Burst OUT Mode LTC313-1 1k 1 = 2.5V.1 = 3.6V = 5V = 12V = 24V.1.1.1 1 1k LOAD CURRENT (ma) = 8V Burst Mode LTC313 OUT 1k 1.1 313 G12 = 2.5V = 3.6V = 5V = 12V = 24V.1.1.1 1 1k LOAD CURRENT (ma) OUT = 24V LTC313 9 8 7 6 5 4 3 2 313 G15.1.1 1 1k LOAD CURRENT (ma) Burst Mode OPERATION: = 5V = 12V = 24V 313 G18 PWM: = 5V = 12V = 24V 313f
標準的性能特性 T A = 25 C POWER LOSS (mw) CURRENT (μa) = 24V Burst Mode LTC313 OUT 1k 1 = 5V = 12V = 24V.1.1.1 1 1k LOAD CURRENT (ma) 1.8 1.6 1.4 1.2 1..8.6.4.2 UVLO.85V 1.1V EXT = V 313 G19 5 15 2 25 (V) 313 G22 I OUT (ma) I IN (μa) 7 6 5 4 3 2 3 25 2 15 5 = 1.8V = 3.3V = 5V = 12V = 25V 5 15 2 25 (V) 313 G2 Burst Mode LTC313 = V OUT I OUT = 2μA (FB DIVIDER) = 1.8V = 3.3V = 5V = 12V = 25V 5 15 2 25 (V) 313 G23 CURRENT (μa) I IN (μa) 1..9.8.7.6.5.4.3.2. = V EXT = V 5 15 2 25 (V) 5. 4.5 4. 3.5 3. 2.5 2. 1.5 1..5 313 G21 Burst Mode LTC313-1 = V OUT = 1.8V = 3.3V = 5V =1 2V 5 15 2 25 (V) 313 G24 I IN (ma) 3 25 2 15 5 = = 1.8V = 3.3V = 5V = 12V = 25V 5 15 2 25 (V) 313 G25 I OUT (A).15.12.9.6.3 Burst Mode = V = 1.8V = 3.3V = 5V = 12V = 25V 5 15 2 25 (V) 313 G26 INDUCTOR CURRENT LIMIT (A).8.7.6.5.4.3.2..95.98 1.1 1.4 1.7 1. (V) 313 G27 313f 7
標準的性能特性 25 C T A = 25 C FB LTC313 25 C LTC3131 25 C CHANGE IN AVERAGE CURRENT LIMIT (%) 1. 2. 3. 4. 5. 6. 7. 8. 9.. 5 25 25 5 75 125 15 TEMPERATURE ( C) 313 G28 CHANGE IN FB VOLTAGE (%)...2.3.4.5.6.7.8.9 1. 5 25 25 5 75 125 15 TEMPERATURE ( C) 313 G29 CHANGE IN OUTPUT VOLTAGE (%)...2.3.4.5.6.7.8.9 1. 5 25 25 5 75 125 15 TEMPERATURE ( C) 313 G3 CHANGE IN OSCILLATOR FREQUENCY (%) 25 C 1. 2. 3. 4. 5. 6. 7. 8. 9.. 5 25 25 5 75 125 15 TEMPERATURE ( C) 313 G31 NORMALIZED OSCILLATOR FREQUENCY (%) = 4V 99 98 CC 97 2.4 2.8 3.2 3.6 4. (V) 313 G32 CHANGE IN THRESHOLD (%)...2.3.4.5.6.7.8.9 25 C 1. 5 25 25 5 75 125 15 TEMPERATURE ( C) 313 G33.55 R DS(ON) R DS(ON) CC.45 PWM R DSON (Ω).5.45.4.35.3.25 R DSON (Ω).42.39.36.33 SW2 (5V/DIV) SW1 (V/DIV) INDUCTOR CURRENT (.5A/DIV) 2nsec/DIV 313 G36.2 5 25 25 5 75 125 15 TEMPERATURE ( C) 3131 G34.3 2.5 3 3.5 4 (V) 3134 G35 8 313f
標準的性能特性 T A = 25 C PWM PWM SW2 (5V/DIV) SW1 (5V/DIV) INDUCTOR CURRENT (.5A/DIV) SW2 (V/DIV) SW1 (5V/DIV) INDUCTOR CURRENT (.5A/DIV) (5mV/DIV) INDUCTOR CURRENT (.2A/DIV) 2nsec/DIV 313 G37 2nsec/DIV 313 G38 5nsec/DIV 12, 5, I LOAD =.5A, C OUT = 22µF 313 G39 Burst Mode PWM Burst Mode (5mV/DIV) (mv/ DIV) PIN (2V/DIV) (V/DIV) (2V/DIV) (2V/DIV) INDUCTOR CURRENT (.2A/DIV) 5 I LOAD =ma C OUT = 22µF 2μsec/DIV 313 G4 INDUCTOR CURRENT (.2A/DIV) 1msec/DIV 12, 5, I LOAD = 2mA, C OUT = 22µF 313 G41 INDUCTOR CURRENT (.2A/DIV) C OUT = 22µF 2msec/DIV 313 G42 = 12V EXT > 4V EXT = 3V (5V/DIV) (2V/DIV) (2V/DIV) (2V/DIV) (2V/DIV) INDUCTOR CURRENT (.2A/DIV) EXT (5V/DIV) EXT (5V/DIV) 2msec/DIV 3138 G43 1msec/DIV 313 G44 1msec/DIV 313 G45 313f 9
標準的性能特性 T A = 25 C Burst Mode (mv/div) VOUT (mv/div) (2V/DIV) (2V/DIV) INDUCTOR CURRENT (.5A/DIV) INDUCTOR CURRENT (.2A/DIV) INDUCTOR CURRENT (.5A/DIV) 5μsec/DIV 12, 5, 5mA to 5mA LOAD STEP C OUT = 22µF, L = μh 313 G46 1msec/DIV 12, 5, ma to 25mA LOAD STEP C OUT = 22µF, L = μh 313 G47 5μsec/DIV 313 G48 V 5V (5V/DIV) (5V/DIV) (1V/DIV) INDUCTOR CURRENT (.2A/DIV) V OC = 9V = 12V R IN = 2Ω C IN = 33μF 2msec/DIV 313 G49 (V/DIV) INDUCTOR CURRENT (.2A/DIV) 5μsec/DIV 5, 5V TO 25V STEP, C OUT = 22µF, L = μh, LIGHT LOAD 313 G5 Burst Mode = (1V/DIV) (2V/DIV) (V/DIV) INDUCTOR CURRENT (.2A/DIV) 5μsec/DIV 5, 5V TO 25V STEP, C OUT = 22µF, L = μh, LIGHT LOAD 313 G51 INDUCTOR CURRENT (.2A/DIV) μsec/div 313 G52 313f
ピン機能 QFN/MSOP BST1 1/ 2 NMOS SW1 P 2/ 4 ESR 47µF 3/ 5 1µF 4/ 6 1.5V.6V 5/ 7 4V EXT 2mA 6mV NC 17 QFN 6/ 8 1.V 7 8 21/ 1 17 PCB FB 9/ 9 LTC313 1.V 25V =1.V 1 R1 R2 (Refer to Figure 2) FB VS2 9/ 9 LTC313-1 1 ILIM / LTC313 25mA 66mA PWM = L 25mA ILIM = H 66mA 313f 11
ピン機能 QFN/MSOP VS1 / LTC313-1 1 1.LTC313-1 VS2 VS1 1.8V 3.3V 5.V 12V 11/ 11 = L Burst Mode = H PWM 3MΩ EXT 12/ 12 2 3V 25V 1V 13/ 13 FB LTC313 LTC313-1 EXT UVLO L 14/ 14 BST2 16/ 15 NMOS SW2 SW2 15/ 16 EMI PCB P 18 19/ 1 P PCB SW1 2/ 3 EMI PCB 12 313f
LTC313 のブロック図 VIN EXT P BST SW1 SW2 BST2 V REF LDO VCC_GD DRIVER A D DRIVER V REF 4V 1.V VREF_GD DRIVER B I SENSE V SENSE C DRIVER.6V 1.5V START ON V SENSE 1.2A ENABLE I PK LOGIC UV.7V V SENSE FB V SENSE 5mA I ZERO THERMAL SHUTDOWN V C 1.V 1.V 3M RESET VCC_GD SOFT-START mv SLEEP 6mA 2mA OSC 7.5% CLAMP P I LIM 313 BD 313f 13
LTC313-1 のブロック図 VIN EXT P BST SW1 SW2 BST2 1.V LDO V REF VCC_GD 4V 1.V VREF_GD DRIVER DRIVER A B I SENSE V SENSE D C DRIVER DRIVER VS1 VS2 SELECT INPUTS.6V 1.5V START ON V SENSE 1.2A ENABLE I PK LOGIC UV.7V V SENSE V SENSE 5mA I ZERO THERMAL SHUTDOWN PWM V C FB 1.V 1.V RESET SOFT-START OSC 3M VCC_GD mv SLEEP 6mA CLAMP 7.5% P 3131 BD 14 313f
動作 1.6µA DC/DC.6V 2.4V 25V 6mA LTC313 1V 25V FB LTC313-1 2 4 R DS(ON) N 1.2MHz Burst Mode Burst Mode Burst Mode 1.6µA Burst Mode PWM H PWM DC/DC / 1.6µA Burst Mode PWM H L PWM 1.2MHz PWM PWM 4 N DMOS 1 PWM BST1 C BST1 P P A B SW1 L SW2 D C C BST2 P BST2 LTC313 1. 313 F1 313f 15
動作 L 7ns D L C SW2 L C BST2 BST2 D A B A L 7ns L B SW1 L C BST1 BST1 A C D 1.2MHz DC/DC FB LTC313 LTC313-1 V C V C 85mA LTC313 ILIM H 66mA I L 9% B C L I OUT(BUCK).9 I L 16 313f
動作 I OUT(BOOST) I L η / η I L ² R DS(ON) 6mA 5V 15V 15mA LTC313 LTC313 FB 2 =1.V 1 R1 R2 (Refer to Figure 2) 1.V 25V R1 2 Burst Mode ( ) = C FF pf 4 R1 (Meg) R1/2 LTC313 FB 313 F2 C OUT 2 LTC313-1 LTC313-1 2 VS1 VS2 4 1 VS1 VS2 R1 R2 C FF R FF OPTIONAL FEED-FORWARD 313f 17
動作 VS1 VS2 H VS 1µA UVLO 1.LTC313-1 VS2 VS1 1.8V 3.3V 5.V 12V ILIM LTC313 LTC313 ILIM 2 ILIM H 66mA ILIM L 25mA 6mA.7V LTC313 ILIM L I PEAK I ZERO 1.3A I PEAK A.7V I ZERO I ZERO PWM I ZERO PWM Burst Mode L I ZERO Burst Mode H Burst Mode DC/DC PWM Burst Mode Burst Mode 18 313f
動作 L PWM 1.6µA PWM PWM 1.5V 95% Burst Mode 12ms UVLO.7V 12ms EXT LDO EXT EXT 4V LTC313/ LTC313-1 EXT UVLO EXT 3.V EXT EXT LDO EXT EXT 3.V 25V 1V EXT EXT 1.5V 25V V.6V EXT 313f 19
動作 UVLO UVLO 2.175V 2.3V EXT 2.3V UVLO 1.4µA.6V 2.3V 1.5V mv.95v 3 UVLO R3 R4 LTC313 1.5V.6V ACCURATE THRESHOLD ENABLE SWITCHING ENABLE V REF AND LOGIC THRESHOLD 3 313 F3 1.4µA 5nA.2V 25V 1.5V (TURNON) = 1.5V 1 R3 R4 mv (TURNOFF) =.95V 1 R3 R4 PCB R3 R4 R4 FB LTC313 LTC313-1 7.5% L 5% H 2 313f
動作 L 25V 12mA UVLO L UVLO L UVLO ) MΩ Burst Mode 6mA 3µA UVLO 4 g m 1.V VC L () = 1.V 1 R5 R6 C R IN S V SOURCE R5 R6 FB 1.V VOLTAGE ERROR AMP LTC313 V C CURRENT COMMAND 313 F4 C IN 22µF 4 313f 21
アプリケーション情報 LTC313-1 LTC313-1 LTC313 PCB / EXT ESR DC DC RHP) 3.3µH 15µH 1/2 f 1.2MHz L µh tlow L µs L.7µs I L(P-P)(BUCK) = L I L(P-P)(BOOST) = L 1 f t LOW Amps 1 f t LOW Amps 5% = 2 = 2.5V = 15V = 5V L = µh 15V 2.5V = 251mA = 94mA 1/2 22 313f
アプリケーション情報 I L 5mA P-P 12mA LTC313 ILIM L 65mA DC PCB DC DCR DCR 35mΩ.5Ω.15Ω DCR DCR DCR % EMI 2 DC 2. VENDOR Coilcraft coilcraft.com Coiltronics cooperindustries.com Murata murata.com Sumida sumida.com Taiyo-Yuden t-yuden.com TDK tdk.com Toko tokoam.com Wurth we-online.com EPL315, LPS3314, LPS412, LPS418, XFL312, XFL42, MSS42 SD3814, SD3118 SD52 LQH43P, LQH44P CDRH2D18, CDRH3D14, CDRH3D16, CDRH4D14 NR312T, NR315T, NRS412T, NR418T VLF25215MT, VLF325MT, VLF32512MT, VLS315ET, VLCF418T, VLCF42T, SPM412T DB318C, DB32C, DEM2815C, DEM3512C, DEM3518C WE-TPC 2818, WE-TPC 3816 3 3. µf L MAX V µh LTC313-1/LTC313 LTC313 PWM 1 2.4 4.7 4 2 2.5 3.9 6.8 3 15 4 6.5 2 6.6 14 15 2 14 25 15 5 313f 23
アプリケーション情報 ESR µf ESR ESR ESL f 1.2MHz COUT µf tlow L.7µs ILOAD V P-P(BUCK) = I LOAD t LOW C OUT V P-P(BOOST) = I LOAD fc OUT Volts t LOW f Volts ESR RESR V P-P(BUCK) = I LOAD R ESR 1 t LOW f V P-P(BOOST) = I LOAD R ESR 1 t LOW f ( ) I LOAD R ESR I LOAD R ESR Volts Volts µf 47µF Burst Mode 22µF P ESR P 1µF P 47µF µf ESR 22µF CIN 24 313f
アプリケーション情報 ESR AC ESR OS-CON POSCAP ESR AC DC Burst Mode ESR DC ESR DC 1/2 5% X5R X7R DC LTC313/LTC313 1.4µA Burst Mode UVLO % 313f 25
アプリケーション情報 UVLO CIN 2 C C IN(MIN) > OUT η V 2 2 ( ( IN (.9 ))) UVLO η COUT CIN CIN UVLO V t CHARGE ( sec) = C IN ( µf) (UVLO) ( I CHARGE ( µa) 1.4µA I LEAK ( µa) ) I LEAK UVLO µa I C IN(MIN) > OUT 2 t η V 2 2 ( ( IN (.9 ))) C IN µf I OUT t ma UVLO η 5V 5ms 25mA 12V UVLO CIN 85% 53.7µF 68µF MΩ pf EXT EXT UVLO 1V EXT 3.15V 2.4V EXT 3.V 25V 6mA EXT EXT EXT = ma-hr /6mA 26 313f
アプリケーション情報 26mA-Hr 2.6A-Hr 3.6V 433 18 Burst Mode 1.6µA.5µA 3.6V 2.5µA 5 V 1V TO 25V EXT P LTC313/ LTC313-1 EXT S C OUT BAT54C 331 F5 5 4V TO 25V UVLO EXT EXT 3.V UVLO EXT 3.V EXT EXT EXT UVLO EXT UVLO EXT 2.4V UVLO 3.V 3.6V UVLO UVLO EXT 3.V EXT EXT EXT 3.15V 6 V V EXT EXT 2M 1M 1.5V LTC313 ENABLE SWITCHING 313 F6 6 EXT 3.15V 3 () = 1.V 1 R5 R6 75% 5V 3.75V 4 R5 2MΩ R6 732k 3.73V 25V 313f 27
アプリケーション情報 LTC313/ LTC313-1 UVLO 22µF 1 6mV 6mA 6% 4 4. Sanyo panasonic.net PowerFilm powerfilmsolar.com Ixys ixys.com Corporation G24 gcell.com Innovations QFN MSE PCB PCB 7 EXT 165 C C 3V 1.8V SW2 MBR53 28 313f
アプリケーション情報 LTC313 L1 CBST1 CBST2 RPGD C IN C CE X T C OUT R2 R1 ILIM LTC313-1 L1 CBST1 CBST2 RPGD C IN C OUT C CE X T VS2 VS1 863 F7 7 2 QFN 313f 29
アプリケーション情報 4.7µH PV PANEL 47µF V OC = 5V V OP = 3.5V 1µF 4.99M 2M BST1 P ILIM SW1 SW2 BST2 EXT LTC313 FB P 3.4M 1M F F 4.4V k k TECATE TPL-/22x45F 313 F8 8 6mA µh 3.6V Li-SOCI2 µf BST1 SW1 SW2 BST2 P V µf IN EXTV 1M CC LTC313 4.2M pf 2k 24V 2mA 1µF ILIM FB P 174k 313 F9 9 2mA ILIM 24V 3 313f
アプリケーション情報 µh 2.4V TO 25V µf BST1 P SW1 SW2 BST2 EXT LTC313 µf pf 4.99M 249k 15V 5mA ( > 15V) 1µF ILIM P FB 357k 313 F Burst Mode 15V 6.8µH.95V TO 25V (2.4V TO START) µf BST1 P SW1 SW2 BST2 EXT LTC313-1 22µF 5V 5mA ( > 5V) 1M 1µF VS1 VS2 P 313 F11 11 5V 313f 31
アプリケーション情報 12V WALL ADAPTER INPUT MBR52 B13 6.8µH I OUT UP TO 6mA WHEN OPERATING FROM WALL ADAPTER I OUT UP TO 5mA WHEN OPERATING FROM USB 3. INPUT I OUT UP TO 3mA WHEN OPERATING FROM BATTERY Li-Ion USB 3. INPUT BSS314 GATE LTC4412 SENSE CTL STAT µf 1µF BST1 P VS1 VS2 SW1 SW2 BST2 EXT LTC313-1 P 22µF 1M 5V 313 F12 12 LTC4412 PowerPath /5V 6.8µH V TO 14V Ω V = 8V 698k 22µF k 1µF BST1 P VS1 VS2 SW1 SW2 BST2 EXT LTC313-1 P µf 12V ma MIN 313 F13 13 12V 32 313f
アプリケーション情報 6.8µH DC SOURCE <.9V TO 25V (2.4V V D1 TO START) D1* 47µF 25V 2 BST1 P VS1 SW1 SW2 BST2 EXT LTC313-1 47µF 3.3V VS2 P 313 F14 *D1 PREVENTS DISCHARGE OF INPUT CAPACITOR TO THE SOURCE. MAY NOT BE REQUIRED IN ALL APPLICATIONS. 14.9V 3.3V 6.8µH BAS7-5 UVLO THRESHOLDS 11.55V/.95V BST1 P SW1 SW2 BST2 22µF 5V INPUT SOURCES: RF AC PIEZO COIL-MAGNET BAS7-6 47µF 16V CER 2 M 1M 1µF VS1 VS2 LTC313-1 EXT P *D1 IS REQUIRED WHEN USING THE MSOP PACKAGE. 313 F15 15 5V UVLO 2.5µA 313f 33
標準的応用例 6.8µH 4 Li-Ion UVLO = 11.41V 4.99M BST1 P SW1 SW2 BST2 µf 12V 5mA µf 453k VS1 LTC313-1 EXT P 313 F16 *D1 IS REQUIRED WHEN USING THE MSOP PACKAGE. 16 Burst Mode UVLO 12V µh SW 2.2µF LTC3525-3.3 SHDN 1 3.3V 1.5µH ALKALINE OR NiMH.85V to 1.5V µf 1µF BST1 P ILIM SW1 SW2 BST2 EXT LTC313 FB P 47µF 42k 2M 2 1.2V pf 2k 313 F17 17 1.2V/2mA LTC3525-3.3 EXT 34 313f
標準的応用例 1μF BAT54S 3.3µH <.9V TO 25V (2.4V TO START) µf 1µF BST1 P VS1 SW1 SW2 BST2 LTC313-1 EXT 47µF 1.8V VS2 P 313 F18 18 1.8V EXT 6.8µH.95V TO 25V (2.4V TO START) µf 1µF BST1 P SW1 SW2 BST2 EXT LTC313 47µF 15pF 2.61M k 3.6V 2mA 6mA ILIM FB P 1M 313 F19 19 3.6V 2 313f 35
パッケージの寸法 http://www.linear-tech.co.jp/product/ltc313#packaging UDC Package 2-Lead Plastic QFN (3mm 4mm) (Reference LTC DWG # 5-8-1742 Rev Ø).7 ±.5 3.5 ±.5 2. ±.5 1.5 REF 1.65 ±.5 2.65 ±.5 PACKAGE OUTLINE.25 ±.5.5 BSC 2.5 REF 3. ±.5 4.5 ±.5 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED.75 ±.5 3. ±. R =.5 TYP 1.5 REF 19 2 PIN 1 NOTCH R =.2 OR.25 45 CHAMFER.4 ±. 4. ±. PIN 1 TOP MARK (NOTE 6) 2.5 REF 2.65 ±. 1 2 1.65 ±. (UDC2) QFN 16 REV Ø.2 REF..5 R =.115.25 ±.5 TYP.5 BSC BOTTOM VIEW EXPOSED PAD 注記 : 1. 図は JEDEC のパッケージ外形ではない 2. 図は実寸とは異なる 3. 全ての寸法はミリメートル 4. パッケージ底面の露出パッドの寸法にはモールドのバリを含まないモールドのバリは ( もしあれば ) 各サイドで.15mm を超えないこと 5. 露出パッドは半田メッキとする 6. 灰色の部分はパッケージの上面と底面のピン 1 の位置の参考に過ぎない 36 313f
パッケージの寸法 http://www.linear-tech.co.jp/product/ltc313#packaging MSE Package 16-Lead Plastic MSOP, Exposed Die Pad (Reference LTC DWG # 5-8-1667 Rev F) BOTTOM VIEW OF EXPOSED PAD OPTION 2.845 ±.2 (.112 ±.4).889 ±.127 (.35 ±.5) 2.845 ±.2 (.112 ±.4) 1 8.35 REF 5. (.21) MIN.35 ±.38 (.12 ±.15) TYP GAUGE PLANE.254 (.) 1.651 ±.2 (.65 ±.4) DETAIL A.5 (.197) BSC RECOMMENDED SOLDER PAD LAYOUT 6 TYP 3.2 3.45 (.126.136) 4.9 ±.152 (.193 ±.6) 16 4.39 ±.2 (.159 ±.4) (NOTE 3) 161514131211 9 9 1.651 ±.2 (.65 ±.4).12 REF DETAIL B CORNER TAIL IS PART OF DETAIL B THE LEADFRAME FEATURE. FOR REFERENCE ONLY NO MEASUREMENT PURPOSE.28 ±.76 (.11 ±.3) REF 3. ±.2 (.118 ±.4) (NOTE 4).18 (.7) DETAIL A.53 ±.152 (.21 ±.6) 1. (.43) MAX 1 2 3 4 5 6 7 8.86 (.34) REF 注記 : 1. 寸法はミリメートル /( インチ ) 2. 図は実寸とは異なる SEATING PLANE.17.27 (.7.11) TYP.5 (.197) BSC 3. 寸法にはモールドのバリ 突出部 またはゲートのバリを含まない モールドのバリ 突出部 またはゲートのバリは 各サイドで.152mm(.6") を超えないこと 4. 寸法には リード間のバリまたは突出部を含まないリード間のバリまたは突出部は 各サイドで.152mm(.6") を超えないこと 5. リードの平坦度 ( 整形後のリードの底面 ) は最大.2mm(.4") であること 6. 露出パッドの寸法には モールドのバリを含む E-PAD 上のモールドのバリは 各サイドで.254mm ( ) を超えないこと.16 ±.58 (.4 ±.2) MSOP (MSE16) 213 REV F 313f 37
標準的応用例 5V 1V 6.8µH.95V TO 25V STOP 1µF BST1 P SW1 LTC313-1 SW2 BST2 EXT 22µF BAT54C µf VS1 3.6V VS2 V TADIRAN TL-492 CC P 5V 313 TA2 関連製品 V V IQ µa LTC3129/LTC3129-1 15V 2mA 1.2MHz 95% LTC3115-1/LTC3115-2 4V 2A 2MHz 95% LTC3114-1 LTC3112 LTC3531 LTC3122 LTC3113 LTC3118 LTC3111 4V 1A 1.2MHz 95% 15V 2.5A 75kHz 95% 5.5V 2mA 6kHz 15V 2.5A 3MHz 95% 5V 3A 2MHz 96% 18V 2A 1.2MHz PowerPath 95% 1.5A I OUT 15V DC/DC 2.42V 15V 1.4V 15.75V 1.3µA 3mm 3mm QFN-16/MSOP-16E 2.7V 4V 2.7V 4V 3µA 4mm 5mm DFN-16/TSSOP- 2E 2.2V 4V 2.7V 4V 3µA 3mm 5mm DFN-16/TSSOP- 16E 2.7V 15V 2.7V 14V 5µA 4mm 5mm DFN-16/TSSOP- 2E 1.8V 5.5V 2V 5V 16µA 3mm 3mm DFN-8/ThinSOT 1.8V 5.5V 2.2V 15V 25µA 3mm 4mm DFN-12/MSOP-12E 1.8V 5.5V 1.8V 5.5V 4µA 4mm 5mm DFN-16/TSSOP- 2E 2.2V 18V 2.2V 18V 5µA 4mm 5mm QFN-24/TSSOP- 28E 2.5V 15V 2.5V 15V 49µA 3mm 4mm DFN-14/MSOP-16 38 2-94 東京都千代田区紀尾井町 3-6 紀尾井町パークビル 8F TEL 3-5226-7291 FAX 3-5226-268 www.linear-tech.co.jp 313f LT816 PRINTED IN JAPAN LINEAR TECHNOLOGY CORPORATION 214