TPS65270_15 datasheet(8/27 Pages) TI

Part #	TPS65270

Description	4.5-V TO 18-V INPUT VOLTAGE, 2-A/3-A OUTPUT CURRENT, DUAL SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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8 / 27 page

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Vin = 12 V Vout2 = 5 V auto PSM-PWM

Forced PWM

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Forced PWM

Vin = 12 V Vout1 = 3.3 V auto PSM-PWM

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PWM, Vout1, Vin = 12 V

PSM, Vout2, Vin = 12 V

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PSM, Vout2, Vin = 12 V

TPS65270

SLVSAX7D – AUGUST 2011 – REVISED APRIL 2013

www.ti.com

TYPICAL CHARACTERISTICS

TA = 25°C, VIN = 12 V, fSW = 625 kHz (unless otherwise noted)

Figure 1. Load Regulation

Figure 2. Load Regulation

Buck 1 at 1.8 V, 1% Resistors

Buck 1 at 1.2 V, 1% Resistor s

Figure 3. Efficiency

Figure 4. Efficiency

Buck 1 at 3.3 V

Buck 2 at 1 V

Figure 5. Efficiency

Figure 6. Efficiency

Buck 1 at 3.3 V

Buck 2 at 5 V

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