ADP5301 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP5301
Manufacturer

ADI
ChipWorker Part#

CW983519083
Description

50mA/500mA, High Efficiency, Ultralow Power Step-Down Regulator
Documentation

Datasheet

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ADP5301 Specifications

Attribute	Attribute Value

Part Number	ADP5301
Manufacturer	ADI
ChipWorker Part#	CW983519083
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active

Product Description

Product Details
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.
The ADP5301 contains a VOUTOK flag, which monitors the output voltage and runs at a 2 MHz switching frequency in PWM mode. SYNC/MODE can synchronize to an external clock from 1.5 MHz to 2.5 MHz.
Other key features in the ADP5301 include separate enabling, quick output discharge (QOD), and safety features such as overcurrent protection (OCP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
The ADP5301 is available in a 9-ball, 1.65 mm × 1.87 mm WLCSP rated for a −40°C to +125°C junction temperature range.
Applications
Energy (gas and water) metering
Portable and battery-powered equipment
Medical applications
Keep-alive power supplies
### Features and Benefits
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 3.6V or 0.8V to 5.0V
±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

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