特長 概要 LTM4612 EN5522B 準拠の 36 15 5A DC/DC μmodule レギュレータ EMI EN5522 B 5V 36V 3.3V 15V 5A DC 7A PLL 1.5% / 超高速過渡応答 電流モード制御 プログラム可能なソフトスタート 出力過電圧保護 動作温度範囲 : 55 ~125 (LTM4612MPV) 実装面積が小さく 高さの低い (15mm 15mm 2.8mm) 表面実装 LGAパッケージ アプリケーション テレコムとネットワーク機器 産業用およびアビオニクス機器 RFシステム LTM 4612 EN5522 B 5A DC/DC FET 5V 36V 3 3.3V 15V EMI 4 8 DC/DC μmodule PolyPhase LTM4612 15mm 15mm 2.8mm LGA PC LTM4612 Pb RoHS L LT LTC LTM Linear Technology Linear のロゴ PolyPhase および μmodule はリニアテクノロジー社の登録商標です LTpowerCAD はリニアテクノロジー社の商標です その他すべての商標の所有権は それぞれの所有者に帰属します 標準的応用例 7V 36V 5V/5A μmodule 24V 5V/5A 7 7V TO 36V C IN 2M.1µF CLOCK SYNC PLLIN PGOOD RUN LTM4612 INTV CC f SET TRACK/SS FCB MARG V D SGND MARGIN CONTROL 392k 5% MARGIN 4612 TA1 1pF 13.7k 5V 5A C OUT dbµv/m 6 5 4 3 2 1 1 EN5522 CLASS B LIMIT 3 226.2 422.4 618.6 814.8 11 128.1 324.3 52.5 716.7 912.9 FREQUENCY (MHz) 4612 TA1b 1
絶対最大定格 Note 1 INTV CC....3V~6V....3V~16V PLLIN FCB TRACK/SS MARG PGOOD....3V~(INTV CC +.3V) RUN....3V~5V....3V~2.7V V D....3V~36V 内部動作温度範囲 (Note 2) E グレードと I グレード... 4 ~125 MP グレード... 55 ~125 接合部温度... 125 保存温度範囲... 55 ~125 ピン配置 BANK 1 BANK 2 BANK 3 A B C D E F G H J K L M TOP VIEW INTV CC PLLIN TRACK/SS RUN V D SGND 1 2 3 4 5 6 7 8 9 1 11 12 f SET MARG PGOOD SGND NC NC NC FCB LGA PACKAGE 133-LEAD (15mm 15mm 2.8mm) T JMAX = 125 C, θ JA = 15 C/W, θ JC = 6 C/W θ JA DERIVED FROM 95mm 76mm PCB WITH 4 LAYERS WEIGHT = 1.7g 発注情報 * LTM4612EV#PBF LTM4612EV#PBF LTM4612V 133-Lead (15mm 15mm 2.8mm) LGA 4 C to 125 C LTM4612IV#PBF LTM4612IV#PBF LTM4612V 133-Lead (15mm 15mm 2.8mm) LGA 4 C to 125 C LTM4612MPV#PBF LTM4612MPV#PBF LTM4612MPV 133-Lead (15mm 15mm 2.8mm) LGA 55 C to 125 C さらに広い動作温度範囲で規定されるデバイスについては 弊社または弊社代理店にお問い合わせください * 温度グレードは出荷時のコンテナのラベルで識別されます 鉛フリー仕様の製品マーキングの詳細については http://www.linear-tech.co.jp/leadfree/ をご覧ください この製品はトレイでのみ供給されます 詳細については http://www.linear-tech.co.jp/packaging/ をご覧下さい 電気的特性 T A = 25 = 24V Note 2 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS (DC) Input DC Voltage l 5 36 V (DC) Output Voltage C IN = 3, C OUT = 3µF; FCB = = 24V, = 12V, I OUT = A = 36V, =12V, I OUT = A Input Specifications (UVLO) Undervoltage Lockout Threshold I OUT = A 3.2 4.8 V I INRUSH(VIN) Input Inrush Current at Start-Up I OUT = A; C IN = 2, C OUT = 2µF; = 12V = 24V = 36V l l 11.83 11.83 12.7 12.7.6.7 12.31 12.31 V V A A 2
電気的特性 T A = 25 = 24V Note 2 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Q(VIN) Input Supply Bias Current = 36V, = 12V, Switching Continuous = 24V, = 12V, Switching Continuous Shutdown, RUN =, = 36V I S(VIN) Input Supply Current = 36V, = 12V, I OUT = 5A = 24V, = 12V, I OUT = 5A TVCC Internal V CC Voltage = 36V, RUN > 2V, I OUT = A 4.7 5 5.3 V I OUT(DC) Output Continuous Current Range = 24V, = 12V (Note 4) 5 A Δ(LINE) Line Regulation Accuracy = 12V, FCB = V, = 22V to 36V, I OUT = A l.5.3 % Δ(LOAD) Load Regulation Accuracy = 12V, FCB = V, I OUT = A to 5A (Note 4) = 36V = 24V (AC) Input Ripple Voltage I OUT = A, C IN = 2 X5R Ceramic and 1 1µF Electrolytic, 1 X5R Ceramic on V D Pins = 24V, = 5V = 24V, = 12V (AC) Output Ripple Voltage I OUT = A, C OUT = 2 22µF, 2 47µF X5R Ceramic = 24V, = 5V = 24V, = 12V f S Output Ripple Voltage Frequency I OUT = 1A, = 24V, = 12V 94 khz Δ(START) Turn-On Overshoot, TRACK/SS = 1nF C OUT = 2µF, = 12V, I OUT = A = 36V = 24V t START Turn-On Time, TRACK/SS = Open C OUT = 3µF, = 12V, I OUT = 1A Resistive Load = 36V = 24V Δ(LS) Peak Deviation for Dynamic Load Load: % to 5% to % of Full Load C OUT = 2 22µF Ceramic, 15µF Bulk = 24V, = 12V l l 57 48 5 1.85 2.72.3.3 7.2 3.4 17.5 12.5 2 2.5.5.6.6 ma ma µa A A % % mv P-P mv P-P mv P-P mv P-P mv mv ms ms 153 mv t SETTLE Settling Time for Dynamic Load Step Load: % to 5% to % of Full Load, = 24V 37 µs I OUT(PK) Output Current Limit C OUT = 2µF = 36V, = 12V = 24V, = 12V Voltage at Pin I OUT = A, = 12V l.591.6.69 V V RUN RUN Pin On/Off Threshold 1 1.5 1.9 V I SS / TRACK Soft-Start Charging Current V SS/TRACK = V 1 1.5 2 µa V FCB Forced Continuous Threshold.57.6.63 V I FCB Forced Continuous Pin Current V FCB = V 1 2 µa t ON(MIN) Minimum On-Time (Note 3) 5 1 ns t OFF(MIN) Minimum Off-Time (Note 3) 25 4 ns R PLLIN PLLIN Input Resistor 5 kω 9 9 A A 3
電気的特性 T A = 25 = 24V Note 2 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I DRVCC Current into Pin = 12V, I OUT = 1A 22 3 ma R FBHI Resistor Between and Pins 99.5 1 1.5 kω V Margin Reference Voltage 1.18 V V MARG, V MARG, Voltage Thresholds 1.4 V PGOOD ΔH PGOOD Upper Threshold Rising 7 1 13 % ΔL PGOOD Lower Threshold Falling 7 1 13 % Δ(HYS) PGOOD Hysteresis Returning 1.5 % V PGL PGOOD Low Voltage I PGOOD = 5mA.15.4 V Note 1 絶対最大定格に記載された値を超えるストレスはデバイスに永続的損傷を与える可能性がある 長期にわたって絶対最大定格条件に曝すと デバイスの信頼性と寿命に悪影響を与える可能性がある Note 2 LTM4612E は ~125 の動作温度範囲で性能仕様に適合することが保証されている 4 ~125 の内部動作温度範囲での仕様は設計 特性評価および統計学的なプロセス コントロールとの相関で確認されている LTM4612I は 4 ~125 の内部動作温度範囲で仕様に適合することが保証されている LTM4612MP は 55 ~125 の全内部動作温度範 囲で保証され テストされている これらの仕様と調和する最大周囲温度は 基板レイアウト パッケージの定格熱抵抗および他の環境要因と関連した特定の動作条件によって決まることに注意 Note 3 ダイ レベルでのみ全数テストされる Note 4 異なる および T A の 出力電流のディレーティング 曲線を参照 4
標準的性能特性 18 1 3.3 FCB = 5 FCB = 95 1 12 FCB = 95 9 95 EFFICIENCY (%) 9 85 8 75 7 65 6 55 5 1 2 3 LOAD CURRENT (A) 5 3.3 12 3.3 24 3.3 36 3.3 4 5 4612 G1 EFFICIENCY (%) 85 8 75 7 65 6 55 5 1 2 3 LOAD CURRENT (A) 12 5 24 5 36 5 4 5 4612 G2 EFFICIENCY (%) 9 85 8 75 7 65 6 55 5 1 2 3 LOAD CURRENT (A) 2 12 24 12 28 12 36 12 4 5 4612 G3 1 95 9 15 FCB = 2 12 3.3 12 5 EFFICIENCY (%) 85 8 75 2A/DIV 2A/DIV 7 1mV/DIV 1mV/DIV 65 6 1 2 3 LOAD CURRENT (A) 28 15 32 15 36 15 4 5 4612 G4 5µs/DIV 4612 G5 LOAD STEP: A to 3A C OUT = 2 22µF CERAMIC CAPACITORS AND 2 47µF CERAMIC CAPACITORS 5µs/DIV LOAD STEP: A to 3A C OUT = 2 22µF CERAMIC CAPACITORS AND 2 47µF CERAMIC CAPACITORS 4612 G6 24 12 24 12 I OUT = A 24 12 I OUT = 5A 2A/DIV 2mV/ DIV 5µs/DIV LOAD STEP: A to 3A C OUT = 2 22µF CERAMIC CAPACITORS AND 2 47µF CERAMIC CAPACITORS 4612 G7 I IN.2A/DIV 5V/DIV 5µs/DIV SOFT-START CAPACITOR: 3.9nF C IN = 3 CERAMIC CAPACITORS AND 1 47µF OSCON CAPACITOR 4612 G8 I IN 1A/DIV 5V/DIV 5µs/DIV SOFT-START CAPACITOR: 3.9nF C IN = 3 CERAMIC CAPACITORS AND 1 47µF OSCON CAPACITOR 4612 G9 5
標準的性能特性 24 12 I OUT = 5A T A = 55 24 12 I OUT = A 24 12 I OUT = 5A 5V/DIV I IN.2A/DIV 5V/DIV I IN 2A/DIV 5V/DIV I IN 1A/DIV 5µs/DIV SOFT-START CAPACITOR: 3.9nF C IN = 3 CERAMIC CAPACITORS AND 1 47µF OSCON CAPACITOR 4612 G1 5µs/DIV C OUT = 2 22µF CERAMIC CAPACITORS AND 2 47µF CERAMIC CAPACITORS 4612 G11 2µs/DIV C OUT = 2 22µF CERAMIC CAPACITORS AND 2 47µF CERAMIC CAPACITORS 4612 G12 36 3 SEE FREQUENCY ADJUSTMENT SECTION FOR OPERATIONS OUTSIDE THIS REGION 24 OPERATING REGION WITH DEFAULT FREQUENCY (V) 18 5mV/DIV 1mV/DIV 12 6 3.3 4 6 8 1 12 14 15 (V) 4612 G13 1µs/DIV = 24V = 12V AT 5A RESISTIVE LOAD C IN = 3 5V CERAMIC 1 1µF BULK 4612 G14 1µs/DIV = 24V = 12V AT 5A RESISTIVE LOAD C OUT = 2 22µF 16V CERAMIC AND 2 47µF 16V CERAMIC 4612 G15 6
ピン機能 1 2 3 GND LTM4612 V D B7 C7 FET V D RMS C1 E11 E12 INTV CC MOSFET 5mA 6V INTV CC A7 5V PLLIN A8 SGND 5k 2V INTV CC FCB M12 SGND INTV CC 2 2 TRACK/SS A9 A12 B11 1.18V/R 1k.6V LTM4612 f SET B12 12V 85kHz 9kHz BANK 1 BANK 2 BANK 3 A B C D E F G H J K L M TOP VIEW INTV CC PLLIN TRACK/SS RUN V D SGND 1 2 3 4 5 6 7 8 9 1 11 12 LGA PACKAGE 133-LEAD (15mm 15mm 2.8mm) f SET MARG PGOOD SGND NC NC NC FCB LTM4612 7
ピン機能 F12.5% SGND MARG C12 LSB MARG 5k C11 D12 MSB MARG 5k A11 D11 V 2.4V.7V PGOOD G12 25μs 1% RUN/SS A1 B9 1.9V 1V 5.1V UVLO 5V NC J12 K12 L12 SGND D9 H12 8
ブロック図 > 1.9V = ON < 1V = OFF MAX = 5V RUN PGOOD 5.1V ZENER INPUT FILTER + 2V TO 36V 1µF C IN INTERNAL C D V D R FB 5.23k SGND MARG f SET FCB 93.1k 5k POWER CONTROL 5k M1 M2 NOISE CANCEL- LATION 2.7µH + 12V AT 4A C OUT 1k TRACK/SS C SS PLLIN 4.7µF 5k INTV CC 4612 F1 1 デカップリングの要件 T A = 25 1 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS C IN External Input Capacitor Requirement I OUT = 4A 2 µf ( = 2V to 36V, = 12V) C OUT External Output Capacitor Requirement ( = 2V to 36V, = 12V) I OUT = 4A 1 15 µf 9
動作 LTM4612 DC/ DC 5A DC 1 3.3V DC 15V DC 5V 36V 18 LTM4612 R DS(ON) FET 12V 85kHz LTM4612 1% PGOOD L FET M1 FET M2 I/O EMI EN5522 B RUN 1V M1 M2 FCB.6V DCM CCM INTV CC 5V 5V MARG MARG PLLIN TRACK/SS LTM4612 18 2 1
PWM.6V SGND R FB =.6V +R FB R FB R FB =.6V 1 1 R FB 1% (V) 3.3 5 6 8 1 12 14 15 R FB (kω) 22.1 13.7 11 8.6 6.34 5.23 4.42 4.12 1k.6V 1.18V RPGM (MARGIN) (MARGIN) = % 1 % (MARGIN) R PGM =.6V 1.18V (MARGIN) 1k R PGM MARG MARG MODE LOW LOW NO MARGIN LOW HIGH MARGIN UP HIGH LOW MARGIN DOWN HIGH HIGH NO MARGIN 2 2 VENDORS PART NUMBER VENDORS PART NUMBER Murata GRM32ER61C476KEI5L (47µF, 16V) Murata GRM32ER71H16K (, 5V) Murata GRM32ER61C226KE2L (22µF, 16V) TDK C3225X5RIC226M (22µF, 16V) (V) C IN (CERAMIC) C IN (BULK) C OUT1 (CERAMIC) C OUT2 (BULK) (V) DROOP (mv) PEAK-TO- PEAK (mv) RECOVERY TIME (µs) LOAD STEP (A/µs) 5 2 5V 1µF 5V 2 22µF 16V 15µF 25V 12 86 156 26 3 13.7 5 2 5V 1µF 5V 4 47µF 16V None 12 86 178 14.8 3 13.7 5 2 5V 1µF 5V 2 22µF 16V 15µF 25V 24 83 166 27 3 13.7 5 2 5V 1µF 5V 4 47µF 16V None 24 86 169 14.8 3 13.7 5 2 5V 1µF 5V 2 22µF 16V 15µF 25V 36 86 178 25 3 13.7 5 2 5V 1µF 5V 4 47µF 16V None 36 86 172 15.2 3 13.7 1 2 5V 1µF 5V 2 22µF 16V 15µF 25V 24 111 29 3 3 6.34 1 2 5V 1µF 5V 4 47µF 16V None 24 171 325 35 3 6.34 1 2 5V 1µF 5V 2 22µF 16V 15µF 25V 36 18 197 35 3 6.34 1 2 5V 1µF 5V 4 47µF 16V None 36 153 288 39 3 6.34 12 2 5V 1µF 5V 2 22µF 16V 15µF 25V 24 153 281 37 3 5.23 12 2 5V 1µF 5V 4 47µF 16V None 36 184 375 34.4 3 5.23 15 2 5V 1µF 5V 2 22µF 16V 15µF 25V 28 178 338 7 3 4.12 15 2 5V 1µF 5V 4 47µF 16V None 36 134 25 7 3 4.12 R FB (kω) 11
LTM4612 2 ΔI 3 19 f SET SGND Rf SET f f = 1.5 1 1 R fset 93.1k ( ) 12V 1MHz 5ns 4ns 1ns 2 f SET R fset f = 5 1 11 3 R fset 93.1k R fset 2 93.1k 21 23 PLLIN LTM4612 12 3.5 FREQUENCY (khz) 1 8 6 4 INDUCTOR CURRENT RIPPLE I (A) 3. 2.5 2. 1.5 1. = 2V = 36V = 28V 2 2 4 6 8 1 12 14 16 (V) 4612 F2 2.5 2 4 6 8 1 12 14 16 (V) 4612 F3 3 12
LTM4612 EMI LTM4612 π V D 18 RMS V D C1 C1 π ESR 1 1μF EN5522 B EMI 4 EMI 7 6 D = RMS dbµv/m 5 4 3 2 EN5522 CLASS B LIMIT I CIN(RMS) = I OUT(MAX) η D ( 1 D) 1 η 1 3 226.2 422.4 618.6 814.8 11 128.1 324.3 52.5 716.7 912.9 FREQUENCY (MHz) 4612 F4 4 24 5 /5A 2 1μF V D 1 1μF 5A ESR X5R X7R 1μF 1 C1 PCB V D AC 2A 3A RMS 1μF RMS 13
PEAK-TO-PEAK OUTPUT RIPPLE CURRENT DIr RATIO = 1..95.9.85.8.75.7.65.6.55.5.45.4.35.3.25.2.15.1.5.1.15.2.25.3.35.4.45.5.55.6.65.7.75.8.85.9 DUTY CYCLE (V O / ) 1-PHASE 2-PHASE 3-PHASE 4-PHASE 6-PHASE 4612 F5 5Dlr = V O T/L I LTM4612 C OUT ESR C OUT ESR ESR 15μF 2A/μs 2 ESR LTM4612 5 5 DIr 36V 12V 4.3A.33 2.33.33 4.3A DIr.33 1.4A ΔI L 2 ESR I (P-P) L 8 f N C OUT +ESR I L f N 14
LTM4612 LTM4612 5% 1/6 TRACK/SS 1.5μA.6V.6V 8% C t SOFTSTART.8 (.6 ±.6 Margin %) SS 1.5µA IRUN 2.5V TRACK/SS 6 7 TRACK TRACK V.6V TRACK / MR = R2 SR MR SR / MR SR R2 R1 R1=.6V + V TRACK R FB R2 MASTER OUTPUT TRACK CONTROL C IN R2 R1 5.23k V D PLLIN PGOOD RUN INTV CC f SET LTM4612 FCB MARG TRACK/SS SGND R FB 5.23k 4612 F6 SLAVE OUTPUT C OUT 4612 F7 6 7 15
V TRACK.6V R2 = V TRACK R1 R FB 6 R2 = 1K R1 = 5.23k SR MR R2 MR = 1.5V/1ms SR = 1.2V/1ms R2 = 125k R1 5.18k TRACK 1.5μA TRACK 1k TRACK RUN 5.1V 5V RUN RUN UVLO UVLO V UVLO = R A +R B R B 1.5V R A R B PGOOD 1% LTpowerCAD FCB FCB MOSFET.6V MOSFET FCB.6V PLLIN MOSFET 3% PLLIN 4ns H 1.7V L.3V INTV CC MOSFET 5V 5V LTM4612 LDO 2mA LDO P LDO_LOSS = 2mA ( 5V) LTM4612 5V 5V 6V 16
LTM4612 21 N R FB = N.6V 1 N EMI EMI di/dt LTM4612 EMI MOSFET LTM4612 EMI EN5522 B LTM4612 8 LTM4612 / 9 1 11 16 θ JA BGA 125 125 θ JA 3 3 11 16 9 1 θ JA 11 16 θ JA 3 AN11 7 6 5 dbµv/m 4 3 2 EN5522 CLASS B LIMIT 1 1 3 226.2 422.4 618.6 814.8 11 128.1 324.3 52.5 716.7 912.9 FREQUENCY (MHz) 4612 F8 8 1 24 5 /5A 17
POWER LOSS (W) 6 5 4 3 2 36 TO 15 24 TO 12 POWER LOSS (W) 6 5 4 3 2 36 TO 5 LOAD CURRENT (A) 5. 4.5 4. 3.5 3. 2.5 2. 1.5 LFM 2 LFM 4LFM 1 1 1..5 1 2 3 4 5 LOAD CURRENT (A) 4612 F9 1 2 3 4 5 LOAD CURRENT (A) 4612 F1 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 4612 F11 15 9 12 15 1 5 11 36 5 LOAD CURRENT (A) 5. 4.5 4. 3.5 3. 2.5 2. 1.5 LFM 2 LFM 4LFM LOAD CURRENT (A) 5. 4.5 4. 3.5 3. 2.5 2. 1.5 LFM 2 LFM 4LFM LOAD CURRENT (A) 5. 4.5 4. 3.5 3. 2.5 2. 1.5 LFM 2 LFM 4LFM 1. 1. 1..5.5.5 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 15 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 15 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 15 12 36 5 BGA 4612 F12 13 24 12 4612 F13 14 24 12 BGA 4612 F14 5. 5. 4.5 4.5 LOAD CURRENT (A) 4. 3.5 3. 2.5 2. 1.5 LFM 2LFM 4LFM LOAD CURRENT (A) 4. 3.5 3. 2.5 2. 1.5 LFM 2LFM 4LFM 1. 1..5.5 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 25 35 45 55 65 75 85 95 AMBIENT TEMPERATURE ( C) 4612 F15 4612 F16 15 36 15 16 36 15 BGA 18
3 12V 15V DERATING CURVE (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θ JA ( C/W) Figures 11, 13, 15 24, 36 Figure 9 None 13 Figures 11, 13, 15 24, 36 Figure 9 2 None 9.3 Figures 11, 13, 15 24, 36 Figure 9 4 None 8.3 Figures 12, 14, 16 24, 36 Figure 9 BGA Heat Sink 12.2 Figures 12, 14, 16 24, 36 Figure 9 2 BGA Heat Sink 8.6 Figures 12, 14, 16 24, 36 Figure 9 4 BGA Heat Sink 7.7 4 5V DERATING CURVE (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θ JA ( C/W) Figure 11 36 Figure 1 None 14.9 Figure 11 36 Figure 1 2 None 11.1 Figure 11 36 Figure 1 4 None 1 Figure 12 36 Figure 1 BGA Heat Sink 14 Figure 12 36 Figure 1 2 BGA Heat Sink 1.4 Figure 12 36 Figure 1 4 BGA Heat Sink 9.3 Wakefield Engineering Part No: LTN269 Phone: 63-635-28 19
LTM4612 2 / LTM4612 PCB PCB PCB V D PCB EMI SGND SGND 1 17 C IN C IN GND SIGNAL GND C OUT C OUT 4612 F17 17 PCB 2
22V TO 36V R5 2M C IN 5V CERAMIC PULL-UP SUPPLY 5V R4 R3 V D PLLIN PGOOD ON/OFF RUN LTM4612 INTV CC f SET TRACK/SS FCB MARG C4.1µF C1 5V SGND CLOCK SYNC MARGIN CONTROL R1 392k 5% MARGIN C3 22pF R FB 5.23k C OUT1 22µF 16V + REFER TO TABLE 2 C OUT2 22µF 16V 12V 5A 4612 F18 18 22V 36 12V/5A 5V TO 36V PULL-UP SUPPLY 5V R4 R3 C ON/OFF IN 5V CERAMIC C1 5V V D PLLIN PGOOD RUN V LTM4612 FB INTV CC FCB CLOCK SYNC C3 22pF R FB 22.1k C OUT1 22µF 6.3V + C OUT2 22µF 6.3V 3.3V 5A EXTERNAL 5V SUPPLY IMPROVES EFFICIENCY ESPECIALLY FOR HIGH INPUT VOLTAGES R fset 191k 1% C4.1µF f SET TRACK/SS SGND MARG MARGIN CONTROL R1 392k 5% MARGIN REFER TO TABLE 2 4612 F19 19 5V 36 3.3V/5A 4kHz 21
26V TO 36V PULL-UP SUPPLY 5V R4 R fset 86k, 1% C IN 5V CERAMIC R3 C1 5V V D PLLIN PGOOD ON/OFF RUN LTM4612 INTV CC f SET TRACK/SS FCB MARG C4 SGND.1µF CLOCK SYNC MARGIN CONTROL R1 392k 5% MARGIN C3 22pF R FB 4.12k C OUT1 22µF 16V + 15V C 4A OUT2 22µF 16V 4612 F2 2 26V 36 15V/4A R5 124k C11.1µF 2V TO 36V 2-PHASE OSCILLATOR V + OUT1 GND OUT2 SET MOD LTC698-1 + C2 5V C5 1µF 5V PULL-UP SUPPLY 5V R4 C8 5V R2 C1 5V V D PLLIN PGOOD RUN INTV CC LTM4612 FCB f SET TRACK/SS MARG C7.33µF SGND C11 5V V D PLLIN PGOOD RUN LTM4612 INTV CC FCB f SET TRACK/SS SGND MARG CLOCK SYNC PHASE R1 392k 5% MARGIN CLOCK SYNC 18 PHASE R6 392k C6 47pF MARGIN CONTROL R FB = R FB 2.61k /N.6V 1 C3 22µF 16V C9 22µF 16V + + 12V, 1A C4 22µF 16V C1 22µF 16V 4612 F21 21 2 12V/1A 22
R5 118k C11.1µF 22V TO 36V 2-PHASE OSCILLATOR V + OUT1 GND OUT2 SET MOD LTC698-1 + C5 1µF 5V PULL-UP SUPPLY 5V R4 C2 5V R2 C7.15µF PULL-UP SUPPLY 5V R3 R7 12V TRACK C1 5V V D PLLIN PGOOD RUN LTM4612 INTV CC FCB f SET MARG TRACK/SS SGND C11 5V V D PLLIN PGOOD RUN LTM4612 INTV CC FCB CLOCK SYNC PHASE 5% MARGIN CLOCK SYNC 18 PHASE MARGIN CONTROL R1 392k C6 22pF R FB1 5.23k C1 22pF C3 22µF 16V C9 22µF 16V + + 12V AT 5A C4 22µF 16V 1V AT 5A C1 22µF 16V C8 5V R8 R9 6.34k f SET TRACK/SS SGND MARG MARGIN CONTROL R6 392k R FB2 6.34k 4612 F22 22 2 12V 1V/5A 23
R5 2k C11.1µF 7V TO 36V 2-PHASE OSCILLATOR V + OUT1 GND OUT2 SET MOD LTC698-1 + C5 1µF 5V R4 C2 5V R fset1 15k R3 5V TRACK 5V 3.3V R2 C7.15µF R7 C1 5V V D PLLIN PGOOD RUN INTV CC LTM4612 FCB f SET TRACK/SS SGND C11 5V V D PGOOD RUN INTV CC LTM4612 MARG CLOCK SYNC PHASE 5% MARGIN CLOCK SYNC 18 PHASE PLLIN FCB C6 22pF MARGIN CONTROL R1 392k C1 22pF R FB1 13.7k C3 22µF 6.3V C9 22µF 6.3V + + 5V AT 5A C4 22µF 6.3V 3.3V AT 5A C1 22µF 6.3V C8 5V R8 R9 22.1k R fset2 f SET TRACK/SS SGND MARG MARGIN CONTROL R6 392k R FB2 22.1k 4612 F23 23 2 5V 3.3V/5A 5kHz 24
パッケージ PIN NAME PIN NAME PIN NAME PIN NAME A1 A2 A3 A4 A5 A6 B1 B2 B3 B4 B5 B6 C1 C2 C3 C4 C5 C6 D1 D2 D3 D4 D5 D6 E1 E2 E3 E4 E5 E6 E7 E8 F1 F2 F3 F4 F5 F6 F7 F8 F9 G1 G2 G3 G4 G5 G6 G7 G8 G9 G1 G11 H1 H2 H3 H4 H5 H6 H7 H8 H9 H1 H11 J1 J2 J3 J4 J5 J6 J7 J8 J9 J1 J11 K1 K2 K3 K4 K5 K6 K7 K8 K9 K1 K11 L1 L2 L3 L4 L5 L6 L7 L8 L9 L1 L11 M1 M2 M3 M4 M5 M6 M7 M8 M9 M1 M11 A7 A8 A9 A1 A11 A12 B7 B8 B9 B1 B11 B12 C7 C8 C9 C1 C11 C12 D7 D8 D9 D1 D11 D12 E9 E1 E11 E12 F1 F11 F12 G12 H12 J12 K12 L12 M12 INTV CC PLLIN TRACK/SS RUN V D - RUN - f SET V D - - MARG - - SGND - - - - - PGOOD SGND NC NC NC FCB 25
パッケージ LGA 133 15mm 15mmm 2.82mm (Reference LTM DWG # 5-8-1766 Rev Ø) 2.72 2.92 2.45 2.55 DETAIL B.27.37 DETAIL B M L K J H G F E D C B A bbb Z Z aaa Z 4 15 BSC X Y 15 BSC aaa Z.63 ±.25 SQ. 133x eee S X Y DETAIL A.12.28 13.97 BSC DETAIL A 13.97 BSC 1.27 BSC 3 12 11 1 9 8 7 6 5 4 3 2 1 C(.3) PAD 1 6.985 5.715 4.445 3.175 1.95.635..635 1.95 3.175 4.445 5.715 6.985 1 6.985 5.715 4.445 3.175 1.95.635..635 1.95 3.175 4.445 5.715 6.985 PCB NOTES 1. ASME Y14.5M-1994 2. JESD MO-222, SPP-1 3 4 #1 #1 5. -Z- 6. 133 aaa bbb eee.1.1.5 NOTE LTMXXXXXX µmodule "A1" 1 LGA 133 117 REV Ø 26
改訂履歴 Rev A REV A 3/1 タイトルと概要の変更絶対最大定格の変更電気的特性の変更 動作 の文章変更 の文章変更図 18 19 2 21 22の変更関連製品の変更 B 5/11 タイトル 概要 特長 標準的応用例のセクションの変更 で示された条件とNote 2の変更 ピン機能の変更 ブロック図の変更 動作 セクションの記述内容の変更 セクションの記述内容の変更 図 17 19 21 22の変更 関連製品の変更 1 1 2 3 1 12 14 19 2 21 22 26 1 2 3 4 7 8 9 1 1~2 2 21 22 23 28 27
LTM4612 パッケージの写真 15mm 2.8mm 15mm 4612 F24 関連製品 製品番号 説明 注釈 LTM466 EN5522クラスB準拠 6A DC/DC μmoduleレギュレータ EN5522クラスB準拠 PLL内蔵 出力トラッキング およびマージニング LTM4612とピン互換 EN5522クラスB準拠の36V 8A 5V VIN 36V 3.3V VOUT 15V 降圧μModuleレギュレータ PLLおよび出力トラッキング付き 15mm 15mm 4.3mm LGAパッケージ LTM4613 LTM461/LTM461A 12A DC/DC μmoduleレギュレータ PLL 出力トラッキング/マージニングおよびリモート検出付き 同期可能 PolyPhase動作 LTM461-1/LTM461A-1バージョンには リモート検出なし LGAパッケージ LTM464A 低VIN 4A DC/DC μmoduleレギュレータ 2.375V VIN 5.5V.8V VOUT 5V 9mm 15mm 2.3mm LGAパッケージ LTM468A 低VIN 8A DC/DC μmoduleレギュレータ 2.7V VIN 5.5V.6V VOUT 5V 9mm 15mm 2.8mm LGAパッケージ LTM822/LTM823 36VIN 1Aおよび2A DC/DC μmoduleレギュレータ ピン互換 4.5V VIN 36V 9mm 11.25mm 2.8mm LGAパッケージ LTM4627 2VIN 15A DC/DC降圧 μmoduleレギュレータ LTM4618 26VIN 6A DC/DC降圧 μmoduleレギュレータ PLLおよび出力トラッキング付き 4.5V VIN 2V.6V VOUT 5V 15mm 15mm 4.3mm LGAパッケージ LTM833 EN5522クラスB準拠の36VIN 3A DC/DC 降圧μModuleレギュレータ 4.5V VIN 26.5V.8V VOUT 5V 同期可能 9mm 15mm 4.3mm LGAパッケージ 3.6V VIN 36V.8V VOUT 24V 同期可能 11.25mm 15mm 4.3mm LGAパッケージ 28 リニアテクノロジー株式会社 12-94 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 LT 511 REV B PRINTED IN JAPAN LINEAR TECHNOLOGY CORPORATION 28