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SWCS049G 数据表(PDF) 25 Page - Texas Instruments |
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SWCS049G 数据表(HTML) 25 Page - Texas Instruments |
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25 / 119 page  25 TPS659110, TPS659112, TPS659113 TPS659114, TPS659118, TPS6591133 www.ti.com SWCS049Q – JUNE 2010 – REVISED MARCH 2016 Submit Documentation Feedback Product Folder Links: TPS659110 TPS659112 TPS659113 TPS659114 TPS659118 TPS6591133 Specifications Copyright © 2010–2016, Texas Instruments Incorporated VDD2 SMPS (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DC line regulation On mode, VIN = VINmin to VINmax at IOUT = 1500 mA VDD2 output voltage = (0.6 to 1.5V) 20 mV On mode, VIN = VINmin to VINmax at IOUT = 1200 mA VDD2 output voltage = (2.2 to 3.3 V) 30 Transient load regulation VIN = 3.8 V, VOUT = 1.2 V IOUT = 0 to 500 mA , Maximum slew = 100 mA/µs IOUT = 700 mA to 1.2 A , Maximum slew = 100 mA/µs 50 mV Turnon time (ton) Off to on IOUT = 200 mA 350 µs Output voltage transition rate From VOUT = 0.6 V to 1.5 V and VOUT = 1.5 V to 0.6 V IOUT = 500 mA TSTEP[2:0] = 001 12.5 mV/µs TSTEP[2:0] = 011 (default) 7.5 TSTEP[2:0] = 111 2.5 Overshoot SMPS turned on 3% Power-save mode ripple voltage PFM (pulse skip mode), IOUT = 1 mA 0.025 × VOUT VPP Switching frequency 2.7 3 3.3 MHz Duty cycle 100% Minimum On time P-Channel MOSFET 35 ns Discharge resistor for power-down sequence RDIS 30 50 Ω VFB2 internal resistance 0.5 1 M Ω Ground current (IQ) Off 1 µA PWM mode, IOUT = 0 mA, VIN = 3.8 V, VDD2_PSKIP = 0 7500 PFM (pulse skipping) mode, no switching 78 Low-power (pulse skipping) mode, no switching ST[1:0] = 11 63 Conversion efficiency PWM mode, DCRL < 50 mΩ, VOUT = 1.2 V, VIN = 3.6 V: IOUT = 10 mA 35% IOUT = 100 mA 78% IOUT = 400 mA 80% IOUT = 800 mA 74% IOUT = 1200 mA 66% IOUT = 1500 mA 62% PFM mode, DCRL < 50 mΩ, VOUT = 1.2 V, VIN = 3.6 V: IOUT = 1 mA 59% IOUT = 10 mA 70% IOUT = 400 mA 80% PWM mode, DCRL < 50 mΩ, VOUT = 3.3 V, VIN = 5 V: IOUT = 10 mA 39% IOUT = 100 mA 85% IOUT = 400 mA 91% IOUT = 800 mA 90% IOUT = 1200 mA 86% PFM mode, DCRL < 50 mΩ, VOUT = 3.3 V, VIN = 5 V: IOUT = 1 mA 80% IOUT = 10 mA 82% IOUT = 400 mA 92% |
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