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TPS62141 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62141 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page TPS62140, TPS62140A TPS62141, TPS62142, TPS62143 www.ti.com SLVSAJ0B – NOVEMBER 2011 – REVISED JUNE 2013 ELECTRICAL CHARACTERISTICS over free-air temperature range (TA=-40°C to +85°C), typical values at VIN=AVIN=PVIN=12V and TA=25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range(1) 3 17 V EN = High, IOUT = 0 mA, device not IQ Operating quiescent current 17 25 µA switching ISD Shutdown current(2) EN = Low 1.5 4 µA VUVLO Falling input voltage 2.6 2.7 2.8 V Undervoltage lockout threshold Hysteresis 200 mV TSD Thermal shutdown temperature 160 °C Thermal shutdown hysteresis 20 CONTROL (EN, DEF, FSW, SS/TR, PG) High-level input threshold voltage (EN, DEF, VH 0.9 V FSW) VL Low-level input threshold voltage (EN, DEF, 0.3 V FSW) ILKG Input leakage current (EN, DEF, FSW) EN, DEF, FSW = VIN or GND 0.01 1 µA Rising (%VOUT) 92 95 98 VTH_PG Power-good threshold voltage % Falling (%VOUT) 87 90 93 VOL_PG Power-good output low IPG= –2 mA 0.07 0.3 V ILKG_PG Input leakage current (PG) VPG = 1.8 V 1 400 nA ISS/TR SS/TR pin source current 2.3 2.5 2.7 µA POWER SWITCH VIN ≥ 6 V 90 170 High-side MOSFET ON-resistance m Ω VIN = 3 V 120 rDS(on) VIN ≥ 6 V 40 70 Low-side MOSFET ON-resistance m Ω VIN = 3 V 50 ILIMF High-side MOSFET forward current limit(3) VIN = 12 V, TA = 25°C 2.45 3 3.5 A OUTPUT VREF Internal reference voltage(4) 0.8 V ILKG_FB Input leakage current (FB) TPS62140, VFB = 0.8 V 1 100 nA Output voltage range (TPS62140) VIN ≥ VOUT 0.9 6.0 V DEF (output voltage programming) DEF = 0 (GND) VOUT DEF = 1 (VOUT) VOUT + 5% PWM mode operation, VIN ≥ VOUT + 1 V –1.8 1.8 PWM mode operation, VIN ≥ VOUT +1 V, Initial output voltage accuracy(5) -1.5 1.6 % VOUT TA = –10°C to 85°C Power-save mode operation, COUT=22µF –2.3 2.8 Load regulation(6) VIN = 12 V, VOUT = 3.3 V, PWM mode 0.05 %/A operation Line regulation(6) 3 V ≤ VIN ≤ 17 V, VOUT = 3.3 V, IOUT = 1 A, 0.02 %/V PWM mode operation (1) The device is still functional down to undervoltage lockout (see parameter VUVLO). (2) Current into AVIN + PVIN pins (3) This is the static current limit. It can be temporarily higher in applications due to internal propagation delay (see Current Limit and Short Circuit Protection section). (4) This is the voltage regulated at the FB pin. (5) This is the accuracy provided by the device itself (line and load regulation effects are not included). For the fixed-voltage versions the (internal) resistive divider is included. (6) Line and load regulation depend on external component selection and layout (see Figure 17 and Figure 18). Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS62140 TPS62140A TPS62141 TPS62142 TPS62143 |
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