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ADP1821

Part Number	ADP1821
Manufacturer	Analog Devices
Description	Step-Down DC-to-DC Controller
Published	Jan 14, 2007
Detailed Description	www.DataSheet4U.com Step-Down DC-to-DC Controller ADP1821 FEATURES Wide power-input voltage range: 1 V to 24 V Chip sup...
Datasheet	ADP1821 PDF File

Overview

www.
DataSheet4U.
com Step-Down DC-to-DC Controller ADP1821 FEATURES Wide power-input voltage range: 1 V to 24 V Chip supply voltage range: 3 V to 5.
5 V Wide output voltage range: 0.
6 V to 85% of input voltage 1% accuracy, 0.
6 V reference voltage All N-channel MOSFET design for low cost Fixed-frequency operation 300 kHz, 600 kHz, or synchronized operation up to 1.
2 MHz No current sense resistor required Power-good output Programmable soft start with reverse current protection Soft start, thermal overload, current-limit protection Undervoltage lockout 10 μA shutdown supply current Small, 16-lead QSOP GENERAL DESCRIPTION The ADP1821 is a versatile and inexpensive, synchronous, pulse width-modu...

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