ADP161 Ultra Low Quiescent Current 150 mA, CMOS Linear Regulator

The ADP160 is available in 15 fixed output voltage options, ranging from 1.2 V to 4.2 V. The ADP160/ADP161 also include a switched resistor to discharge the output automatically when the LDO is disabled. The ADP162 is identical to the ADP160 but does not include the output discharge function. The ADP161and ADP163 are available as a adjustable output voltage regulators. They are only available in a 5-lead TSOT package. The ADP163 is identical to the ADP161 but does not include the output discharge function. Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP160 and ADP162 are available in a tiny 5-lead TSOT and a 4-ball, 0.5 mm pitch WLCSP package for the smallest footprint solution to meet a variety of portable power applications. Applications Mobile phones Digital cameras and audio devices Portable and battery-powered equipment Post dc-to-dc regulation Portable medical devices

The ADP160/ADP161/ADP162/ADP163 are ultralow quiescent current, low dropout, linear regulators that operate from 2.2 V to 5.5 V and provide up to 150 mA of output current. The low 195 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range.

The ADP16x are specifically designed for stable operation with tiny 1 μF ± 30% ceramic input and output capacitors to meet the requirements of high performance, space-constrained applications.

Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP160 and ADP162 are available in a tiny 5-lead TSOT and a 4-ball, 0.5 mm pitch WLCSP package for the smallest footprint solution to meet a variety of portable power applications.

Features and Benefits

Ultralow quiescent current
IQ = 560 nA with 0 μA load
IQ = 860 nA with 1 μA load
Stable with 1 μF ceramic input and output capacitors
Maximum output current: 150 mA
Input voltage range: 2.2 V to 5.5 V
Low shutdown current: <50 nA typical
Low dropout voltage: 195 mV @ 150 mA load

Initial accuracy: ±1%
Accuracy over line, load, and temperature: ±3.5%
15 fixed output voltage options: 1.2 V to 4.2 V
Adjustable output available
PSRR performance of 72 dB @ 100 Hz
See data sheet for additional features

Power Management

Linear Regulators

Design Tools

ADI Linear Regulator Design Tool and Parametric Search .

Data Sheets

Document	note
ADP160/ADP161/ADP162/ADP163: Ultralow Quiescent Current, 150 mA, CMOS Linear Regulators Data Sheet (Rev. H)	PDF 624 kB

Application Notes

Document	note
AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0)	PDF 486.76 K
AN-1072: How to Successfully Apply Low Dropout Regulators	PDF 105 kB