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TPS65321A-Q1 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS65321A-Q1 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 43 page ![]() 7 TPS65321A-Q1 www.ti.com SLVSE55 – NOVEMBER 2017 Product Folder Links: TPS65321A-Q1 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) VI = 6 V to 27 V, EN1 = EN2 = VI, over-operating free-air temperature range TA = –40°C to 125°C and maximum operating junction temperature TJ = –150°C, unless otherwise noted. VI is the voltage on the battery-supply pins, VIN and VIN_LDO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ΔVO(ΔIL) Load regulation I(LDO_OUT) = 10 mA to 200 mA, V(VIN_LDO) = 12 V, V(LDO_OUT) = 3.3 V 35 mV VDROPOUT Dropout voltage (V(VIN_LDO) – V(LDO_OUT)) I(LDO_OUT) = 200 mA 300 450 mV I(LDO_OUT) Output current V(LDO_OUT) in regulation, V(VIN) ≥ 4V 280 mA VI(VIN_LDO) Operating input voltage on VIN_LDO pin V(LDO_OUT) in regulation 3 36 V V(ref2) Voltage reference at FB2 pin V(LDO_OUT) = 1.1 V to 5.5 V 0.788 0.8 0.812 V ICL(LDO_OUT) Output current-limit V(LDO_OUT) = 0 V (the LDO_OUT pin is shorted to ground) 280 1000 mA IQ(LDO) Quiescent current V(VIN) = 12 V Measured at VIN pin V(EN1) = 0 V, V(EN2) = 5 V, I(LDO_OUT) = 0.01 mA to 0.75 mA 35 50 μA PSRR Power supply ripple rejection V(VIN_LDO)(rip) = 0.5 VPP, I(LDO_OUT) = 200 mA, frequency (ƒ) = 100 Hz, V(LDO_OUT) = 5 V and V(LDO_OUT) = 3.3 V 60 dB V(VIN_LDO)(rip) = 0.5 VPP, I(LDO_OUT) = 200 mA, ƒ = 150 kHz, V(LDO_OUT) = 5 V and V(LDO_OUT) = 3.3 V 30 dB C(LDO_OUT) Output capacitor ESR = 0.001 Ω to 100 mΩ, large output capacitance may be required for load transient V(LDO_OUT) ≥ 3.3 V 1 40 μF C(LDO_OUT) Output capacitor ESR = 0.001 Ω to 100 mΩ, large output capacitance may be required for load transient 1.2 V ≤ V(LDO_OUT) < 3.3 V 20 40 μF BUCK REGULATOR: RESET (nRST Pin) RESET threshold V(FB1) decreasing 85% 90% 95% VOL Output low nRST pin asserted low due to falling V(FB1), < 1-mA sinking current into nRST pin 0 0.045 0.4 V Filter time Delay before asserting nRST low 7 14 21 μs OVER TEMPERATURE PROTECTION TSD Thermal-shutdown trip point 175 ºC Thys Hysteresis 10 ºC |
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