ADP172 - ADI

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

Part No

ADP172
Manufacturer

ADI
ChipWorker Part#

CW353137981
RoHS

Lead free / RoHS Compliant
Description

300mA, Low Quiescent Current, fixed-output, CMOS Linear Regulator in a WLCSP footprint
Documentation

Datasheet

ADP172 Global Supplier

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ADP172 Specifications

Attribute	Attribute Value

Part Number	ADP172
Manufacturer	ADI
ChipWorker Part#	CW353137981
Documentation	Datasheet
	expand all
Product Lifecycle Status	Recommended for New Designs
RoHS	RoHS Compliant

Product Description

Product Details
The ADP170/ADP171/ADP172 are low voltage input, low quiescent current, low-dropout (LDO) linear regulators that operate from 1.6 V to 3.6 V and provide up to 300 mA of output current. The low 50 mV dropout voltage at 300 mA load improves efficiency and allows operation over a wide input voltage range. The low 23 μA of quiescent current at no load makes the ADP172 ideal for battery-operated portable equipment.
The ADP172 is capable of 31 fixed-output voltage options, ranging from 0.8 V to 3.0 V. The ADP172 is optimized for stable operation with small 1 μF ceramic output capacitors. Ideal for powering digital processors, the ADP172 exhibits good transient perform- ance and occupies minimal board space. Compared with commodity-type LDOs, the ADP172 provides 20 dB to 40 dB better power supply rejection ratio (PSRR) at 100 kHz, making the ADP172 an ideal power source for analog-to-digital converter (ADC) mixed-signal processor systems and allowing use of smaller size bypass capacitors. In addition, low output noise performance without the need for an additional bypass capacitor further reduces printed circuit board (PCB) component count.
Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP172 is available in a tiny 4-ball, 0.5 mm pitch WLCSP for the smallest footprint solution to meet a variety of portable power applications.
**Applications**
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
DSP/FPGA/microprocessor supplies
Post dc-to-dc regulation
### Features and Benefits
Maximum output current: 300 mA
Input voltage range: 1.6 V to 3.6 V
Low quiescent current IGND = 23 μA with 0 mA load IGND = 170 μA with 300 mA load
Low shutdown current: <1 μA
Low dropout voltage: 50 mV at 300 mA load
Output voltage accuracy: ±1%
Up to 31 fixed-output voltage options available from 0.8 V to 3.0 V
Accuracy over line, load, and temperature: ±3%
Stable with small 1 μF ceramic output capacitor
PSRR performance of 70 dB at 10 kHz and 73 dB at 1 kHz
Low noise: 30 μV rms at VOUT = 0.8 V
Current limit and thermal overload protection
Logic-controlled enable
Tiny 4-ball, 0.5 mm pitch WLCSP package

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