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ADP2140

Analog Devices
Part Number ADP2140
Manufacturer Analog Devices
Description Low Quiescent Current Buck
Published Aug 14, 2010
Detailed Description Data Sheet 3 MHz, 600 mA, Low Quiescent Current Buck with 300 mA LDO Regulator ADP2140 FEATURES Input voltage range: 2...
Datasheet PDF File ADP2140 PDF File

ADP2140
ADP2140

Overview
Data Sheet 3 MHz, 600 mA, Low Quiescent Current Buck with 300 mA LDO Regulator ADP2140 FEATURES Input voltage range: 2.
3 V to 5.
5 V LDO input (VIN2) 1.
65 V to 5.
5 V Buck output voltage range: 1.
0 V to 3.
3 V LDO output voltage range: 0.
8 V to 3.
3 V Buck output current: 600 mA LDO output current: 300 mA LDO quiescent current: 22 μA with zero load Buck quiescent current: 20 μA in PSM mode Low shutdown current: <0.
3 μA Low LDO dropout 110 mV @ 300 mA load High LDO PSRR 65 dB @ 10 kHz at VOUT2 = 1.
2 V 55 dB @ 100 kHz at VOUT2 = 1.
2 V Low noise LDO: 40 μV rms at VOUT2 = 1.
2 V Initial accuracy: ±1% Current-limit and thermal overload protection Power-good indicator Optional enable sequencing 10-lead 0.
75 mm × 3 mm × 3 mm LFCSP package APPLICATIONS Mobile phones Personal media players Digital camera and audio devices Portable and battery-powered equipment GENERAL DESCRIPTION The ADP2140 includes a high efficiency, low quiescent 600 mA stepdown dc-to-dc converter and a 300 mA LDO packaged in a...


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