www.tij.co.jp TPS54140 Ω µ µ µ µ VIN PWRGD TPS54140 EN BOOT PH 90 85 80 SS /TR RT /CLK COMP VSENSE GND Efficiency - % 75 70 65 60 55 V= I 12 V, V O = 3.3 V, f sw = 1200 khz 50 0 0.25 0.50 0.75 1 1.25 1.50 1.75 2 Load Current - A
40 150 10 MSOP TPS54140DGQ VIN EN BOOT VSENSE Input voltage COMP PWRGD SS/TR RT/CLK PH BOOT Output voltage PH PH, 10-ns Transient Voltage Difference PAD to GND EN BOOT Source current VSENSE PH RT/CLK VIN COMP Sink current PWRGD SS/TR Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A) Electrostatic Discharge (CDM) QSS 009-147 (JESD22-C101B.01) Operating junction temperature Storage temperature 0.3 47 0.3 5 55 0.3 3 0.3 3 0.3 6 0.3 3 0.3 3.6 8 0.6 47 2 47 ±200 100 100 10 Current Limit 100 Current Limit 100 10 200 1 500 40 150 65 150 V V mv µa ma µa A µa A µa ma µa kv V 2
MSOP 57/W Operating input voltage 3.5 42 Internal undervoltage lockout threshold No voltage hysteresis, rising and falling 2.5 Shutdown supply current EN = 0V,25, 3.5V VIN 42V 1.3 4 Operating : nonswitching supply current VSENSE = 0.83V, VIN = 12V, 25 116 136 Enable threshold voltage No voltage hysteresis, rising and falling, 25 0.9 1.25 1.55 Input current Enable threshold +50mV ±3.8 Enable threshold ±50mV ±0.9 Hysteresis current ±2.9 Voltage reference T J = 25 0.792 0.8 0.808 0.784 0.8 0.816 On-resistance VIN = 3.5V, BOOT-PH = 3V 300 VIN = 12V, BOOT-PH = 6V 200 410 Input current 50 Error amplifier transconductance (g M ) ±2µA < I COMP < 2µA, V COMP = 1V 97 Error amplifier transconductance (g M ) during slow start ±2µA < I COMP < 2µA, V COMP = 1V, V VSENSE = 0.4V 26 Error amplifier dc gain V VSENSE = 0.8V 10,000 Error amplifier bandwidth 2700 Error amplifier source/sink V (COMP) = 1V, 100mV overdrive ±7 COMP to switch current transconductance 6 Current limit threshold VIN = 12V, T J = 25 1.8 2.7 Thermal shutdown 182 V V µa V µa µa V mω na µmhos µmhos V/V khz µa A/V A 3
Switching Frequency Range using RT mode 300 2500 f SW Switching frequency R T = 200k Ω 450 581 720 Switching Frequency Range using CLK mode 300 2200 Minimum CLK pulse width 40 RT/CLK high threshold 1.9 2.2 RT/CLK low threshold 0.5 0.7 RT/CLK falling edge to PH rising edge delay Measured at 500kHz with RT resistor in series 60 PLL lock in time Measured at 500kHz 100 Charge current V SS/TR = 0.4V 2 SS/TR-to-VSENSE matching V SS/TR = 0.4V 45 SS/TR-to-reference crossover 98% nominal 1.0 SS/TR discharge current (overload) VSENSE = 0V, V(SS/TR) = 0.4V 112 SS/TR discharge voltage VSENSE = 0V 54 VSENSE falling 92% V VSENSE VSENSE threshold VSENSE rising 94% VSENSE rising 109% VSENSE falling 107% Hysteresis VSENSE falling 2% Output high leakage VSENSE = VREF, V(PWRGD) = 5.5V, 25 10 On resistance I(PWRGD) = 3mA, VSENSE < 0.79V 50 Minimum VIN for defined output V(PWRGD) < 0.5V, II(PWRGD) = 100µA 0.95 1.5 khz khz khz ns V V ns µs µa mv V µa mv na Ω V 4
BOOT 1 10 PH VIN EN SS/TR RT/CLK 2 3 4 Thermal Pad (11) 5 6 9 8 7 GND COMP VSENSE PWRGD BOOT 1 O COMP 8 O EN 3 I GND 9 PH 10 I POWERPAD 11 PWRGD 6 O RT/CLK 5 I SS/TR 4 I VIN 2 I VSENSE 7 I 5
6 ERROR AMPLIFIER Boot Charge Boot UVLO UVLO Current Sense Oscillator with PLL Frequency Shift Logic And PWM Latch Slope Compensation PWM Comparator Minimum Clamp Pulse Skip Maximum Clamp Voltage Reference Overload Recovery VSENSE SS/TR COMP RT/CLK PH BOOT VIN Thermal Shutdown EN Enable Comparator Shutdown Logic Shutdown Enable Threshold TPS54140 Block Diagram Logic Shutdown PWRGD Shutdown OV GND POWERPAD 7 4 8 5 9 11 10 1 2 3 6 UO
Ω 500 375 250 125 V= 12 V I BOOT-PH = 3 V BOOT-PH = 6 V 0 50 25 0.816 0.808 0.800 0.792 V= 12 V I 0.784 50 25 0 25 50 75 100 125 150 3.5 V= 12 V I 610 V= I 12 V, RT = 200 kω 600 3 2.5 590 580 570 560 2 50 25 0 25 50 75 100 125 150 550 50 25 0 25 50 75 100 125 150 2500 2000 1500 1000 500 V= I 12 V, T J = 25 1000 V= I 12 V, T J = 25 800 600 400 200 0 0 25 50 75 100 125 150 175 200 Ω 0 100 200 300 400 500 600 700 800 900 1000 Ω 7
40 150 V= 12 V I V= 12 V I 130 30 µ 20 µ 110 90 70 10 50 25 0 25 50 75 100 125 150 50 50 25 0 25 50 75 100 125 150 1.40 3.25 V= 12 V I V= I 12 V, V I(EN) = Threshold +50 mv 3.5 1.30 1.20 µ 3.75 4 1.10 50 25 0 25 50 75 100 125 150 4.25 50 25 0 25 50 75 100 125 150 0.8 0.85 V= I 12 V, V I(EN) = Threshold 50 mv 1 1.5 V= 12 V I µ 0.9 µ 2 0.95 2.5 1 50 25 0 25 50 75 100 125 150 3 50 25 0 25 50 75 100 125 150 8
120 115 V= 12 V I 100 80 V= I 12 V, T J = 25 µ 110 60 40 105 20 100 50 25 0 25 50 75 100 125 150 0 0 0.2 0.4 0.6 0.8 2 1.5 V= 12 V I 2 1.5 T = 25 J µ µ 1 0.5 0 50 25 0 25 50 75 100 125 150 140 V= I 12 V, V I(VSENSE) = 0.83 V 130 120 110 µ µ 1 0.5 0 0 10 20 30 40 140 T J = 25, V I(VSENSE) = 0.83 V 130 120 110 100 100 90 50 25 0 25 50 75 100 125 150 90 0 20 40 9
Ω 100 80 60 40 20 V= 12 V I 115 110 105 100 95 90 V= 12 V I VSENSE Rising VSENSE Rising VSENSE Falling VSENSE Falling 0 50 25 0 25 50 75 100 125 150 85 50 25 0 25 50 75 100 125 150 2.5 3 2.3 2.75 2 2.50 1.8 2.25 1.5 50 25 0 25 50 75 100 125 150 2 50 25 0 25 50 75 100 125 150 500 400 V= 12 V, I T = 25 J 60 55 V (SS/TR) = 0.2 V V= I 12 V 50 300 200 45 40 100 35 0 0 100 200 300 400 500 600 700 800 30 50 25 0 25 50 75 100 125 150 10
11 µ µ Ω
µ VOUT (ac) I L PH 12
µ 4 3.8 3.6 3.4 3.2 3 Start V O = 3.3 V 0 0.05 0.10 0.15 0.20 µ µ Stop 5.6 5.4 5.2 5 4.8 4.6 Start Stop V O = 5 V 0 0.05 0.10 0.15 0.20 13
± Ω TPS54140 R1 R2 VIN EN I1 0.9 µ A 1.25 V + - Ihys 2.9 µ A µ R3 VOUT µ R1 VIN I1 0.9 µ A TPS54140 Ihys 2.9 µ A + R2 EN 1.25 V - 14
µ µµ µ µ EN SS/TR V SENSE VOUT 15
3 4 6 3 TPS54140 EN SS/TR PWRGD TPS54140 EN TPS54140 4 SS/TR EN PWRGD EN 6 PWRGD SS/TR SS /TR PWRGD EN1, EN2 VOUT1 EN1 PWRGD1 VOUT2 VOUT1 VOUT2 16
TPS54140 EN VOUT 1 SS/TR PWRGD EN TPS54140 VOUT 2 R1 SS/ TR R2 PWRGD R4 R3 17
EN EN VOUT1 VOUT1 VOUT2 VOUT2 EN VOUT1 VOUT2 18
1000 800 600 400 200 0 100 200 300 400 500 600 700 800 900 1000 Ω V= I 12 V, T J = 25 ƒ 2500 2000 1500 1000 500 V= I 12 V, T J = 25 0 0 25 50 75 100 125 150 175 200 Ω 19
Ω Ω ƒ 2500 V O = 3.3 V 2000 1500 1000 500 Skip Shift 0 10 20 30 40 20
21 Ω Ω RT/CLK TPS54140 Clock Source PLL R fset 10 pf 4 kω 50 Ω EXT EXT IL PH
Ω µ Power Stage gmps 6 A/V PH a V O b R1 R ESR COMP R L C2 c R3 C1 CO RO gm ea 97 µ A/V 0.8 V VSENSE R2 C OUT 22
V O VC Adc R ESR fp R L gm ps C OUT π π π π fz 23
V O R1 VSENSE gm ea COMP Type 2A Type 2B Type 1 R2 Vref R O C O R3 C2 R3 C2 C1 C1 Aol A0 P1 A1 Z1 P2 BW π π π π π π π π π 24
Ω Ω C1 0.1 µ F L1 10 µ H 3.3 V at 1.5 A 8-18 V U1 TPS54140DGQ BOOT VIN PH GND D1 B220A + C OUT 47 µ F/6.3 V C2 C3 C4 R3 2.2 µ F 2.2 µ F 0.1 µ F 332 kω R4 61.9 kω CSS RT EN SS/TR RT/CLK 0.01 µ F 90.9 kω PwPd COMP VSNS PWRGD CF 6.8 pf RC 76.8 kω CC 2700 pf R1 31.6 kω R2 10 kω 25
µ µ ƒ µ 26
µ µ Ω µ Ωµ ƒ ƒ ƒ ƒ ƒ ƒ ƒ 27
µ µ µ ƒ µ 100 28
29 µ µ µ ΩΩ Ω Ω Ω µ Ω ƒ π ƒ π
Ω ƒ πƒ ƒ ƒƒ ƒ π π πƒ ƒ πƒ Ω Ω 30
VIN VO VOUT IO EN IL VOUT VOUT IL VIN PH IL VOUT VOUT IL IL PH PH 31
VIN VIN IL IL PH PH VIN 95 90 85 V= 8 V I V O = 3.3 V, f sw = 1200 khz IL PH 80 75 70 65 V= 12 V I V= 16 V I 60 55 50 0 0.25 0.50 0.75 1 1.25 1.5 1.75 2 60 1.015 150 V= I 12 V 40 Phase 100 1.010 20 0 Gain 50 0 50 1.005 1.000 0.995 20 40 100 1-10 3 100 150 1-10 4 1-10 5 1-10 6 0.990 0.985 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 32
1.015 1.010 I O = 0.5A 1.005 1.000 0.995 0.990 0.985 5 10 15 20 ƒ ƒ Ω 33
Vout Topside Ground Area Output Capacitor Route Boot Capacitor Trace on another layer to provide wide path for topside ground Catch Diode Output Inductor Vin Input Bypass Capacitor BOOT PH VIN GND EN COMP UVLO Adjust Resistors SS/TR RT/CLK VSENSE PWRGD Compensation Network Resistor Divider Slow Start Capacitor Frequency Set Resistor Thermal VIA Signal VIA 34
Orderable Device Status (1) Package Type TPS54140DGQ ACTIVE MSOP- Power PAD TPS54140DGQR ACTIVE MSOP- Power PAD Package Drawing Pins Package Qty DGQ 10 80 Green (RoHS & no Sb/Br) DGQ 10 2500 Green (RoHS & no Sb/Br) Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) CU NIPDAU CU NIPDAU Level-1-260C-UNLIM Level-1-260C-UNLIM 35
REEL DIMENSIONS TAPE DIMENSIONS K0 P1 B0 W Reel Diameter Cavity A0 A0 B0 K0 W P1 Dimension designed to accommodate the component width Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Reel Width (W1) QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Sprocket Holes Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 User Direction of Feed Pocket Quadrants *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) A0(mm) B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant TPS54140DGQR MSOP- Power PAD DGQ 10 2500 330.0 12.4 5.3 3.3 1.3 8.0 12.0 Q1 36
*All dimensions are nominal Device PackageType Package Drawing Pins SPQ Length(mm) Width (mm) Height (mm) TPS54140DGQR MSOP-PowerPAD DGQ 10 2500 370.0 355.0 55.0 37
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DGQ (R-PDSO-G10) PowerPAD (SLVS889) 40
IMPORTANT NOTICE 2001.11