SA57254-30GW datasheet(6/18 Pages) PHILIPS

Part #	SA57254-30GW

Description	CMOS switching regulator (PWM controlled)

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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Philips Semiconductors

Product data

SA57254-XX

CMOS switching regulator (PWM controlled)

2003 Nov 11

6

VOUT

OUTPUT VOLTAGE

(20 mV/div)

VSW

SW VOLTAGE

(1 V/div)

t (10

µs/div)

SL01472

VIN = 1.8 V

Figure 9. Ripple voltage at IOUT = 200 µA.

VOUT

OUTPUT VOLTAGE

(20 mV/div)

VSW

SW VOLTAGE

(1 V/div)

t (10

µs/div)

SL01473

VIN = 1.8 V

Figure 10. Ripple voltage at IOUT = 10 mA.

VOUT

OUTPUT VOLTAGE

(20 mV/div)

VSW

SW VOLTAGE

(1 V/div)

t (10

µs/div)

SL01474

VIN = 1.8 V

Figure 11. Ripple voltage at IOUT = 60 mA.

VIN

INPUT VOLTAGE

(1 V/div)

VOUT

OUTPUT VOLTAGE

(1 V/div)

t (1 ms/div)

SL01475

IOUT = 60 mA

Figure 12. Start-up characteristic VIN: 0 V → 1.8 V.

IOUT

LOAD CURRENT

(20 mA/div)

VOUT

OUTPUT VOLTAGE

(50 mV/div)

t (200

µs/div)

SL01477

IOUT: 100 µA → 50 mA; VIN = 1.8 V

Figure 13. Output load regulation, increasing current.

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SA57254-30GW Datasheet(PDF) 6 Page - NXP Semiconductors

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