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ADP5301

Analog Devices
Part Number ADP5301
Manufacturer Analog Devices
Description Ultralow Power Step-Down Regulator
Published Feb 27, 2016
Detailed Description Data Sheet 50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator ADP5301 13169-001 FEATURES Input start-u...
Datasheet PDF File ADP5301 PDF File

ADP5301
ADP5301

Overview
Data Sheet 50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator ADP5301 13169-001 FEATURES Input start-up voltage range: 2.
15 V to 6.
50 V Operates down to 2.
00 V voltage Ultralow 180 nA quiescent current with no load Selectable output voltage of 1.
2 V to 3.
6 V or 0.
8 V to 5.
0 V ±1.
5% output accuracy over full temperature range in PWM mode Selectable hysteresis mode or PWM operation mode Output current Up to 50 mA in hysteresis mode Up to 500 mA in PWM mode VOUTOK flag monitors the output voltage 100% duty cycle operation mode 2 MHz switching frequency with optional synchronization input from 1.
5 MHz to 2.
5 MHz QOD option UVLO, OCP, and TSD protection 9-ball, 1.
65 mm × 1.
87 mm WLCSP −40°C to +125°C junction temperature APPLICATIONS Energy (gas and water) metering Portable and battery-powered equipment Medical applications Keep-alive power supplies GENERAL DESCRIPTION The ADP5301 is a high efficiency, ultralow quiescent current step-down regulator that draws only a 180 nA quiescent current to regulate the output at no load.
The ADP5301 runs from an input startup voltage range of 2.
15 V to 6.
50 V, allowing the use of multiple alkaline/NiMH, Li-Ion cells, or other power sources.
The output voltage is selectable from 0.
8 V to 5.
0 V by an external VID resistor and factory fuse.
The total solution requires only four tiny external components.
The ADP5301 can operate between hysteresis mode and PWM mode via the SYNC/MODE pin.
The regulator in hysteresis mode achieves excellent efficiency at a power of less than 1 mW and provides up to 50 mA of output current.
The regulator in PWM mode produces a lower output ripple and supplies up to 500 mA of output current.
The flexible configuration capability during operation of the device enables very efficient power management to meet both the longest battery life and low system noise requirements.
TYPICAL APPLICATION CIRCUIT VIN = 3.
6V 10µF ON OFF PWM HYS PVIN ADP5301 (9-BALL WLCSP) SW EN PGND 2.
2µH 10µF VOUT S...


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