ADP165ACPZN-1.8-R7

LDO Regulator Pos 1.2V to 4.2V 6Pin LFCSP EP T/R

Product Details

The ADP165/ADP166 are very low quiescent current, low dropout, linear regulator that operate from 2.2 V to 5.5 V and provides up to 150 mA of output current. The low 120 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range.

The ADP165/ADP166 are specifically designed for stable operation with a tiny 1 µF ± 30% ceramic input and output capacitors to meet the requirements of high performance, space-constrained applications.

The ADP165/ADP166 are available in seven fixed output voltage options, ranging from 1.2 V to 3.3 V, and an adjustable output option. The ADP165 also include a switched resistor to discharge the output automatically when the LDO is disabled. The ADP166 is identical to the ADP165, but does not include the output discharge function.

Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP165/ADP166 are available in a tiny 5-lead TSOT, a 6-lead LFCSP and a 4-ball, 0.5 mm pitch WLCSP package for the smallest footprint solution to meet a variety of portable power applications.

**Applications**

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Portable and battery-powered equipment

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Post dc-to-dc regulation

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Portable medical devices

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Wireless sensor network WSN devices

### Features and Benefits

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Very low quiescent current

IQ = 590 nA with 0 µA load

IQ = 890 nA with 1 µA load

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Maintains very low quiescent current in dropout pass through mode:

IQ_DROP = 720 nA with 0 µA load

IQ_DROP = 1200 nA with 1 µA load

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Stable with 1 µF ± 30% ceramic input and output capacitors

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Maximum load current: ILOAD_MAX: 150 mA

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Input voltage range: 2.2 V to 5.5 V

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Low shutdown current: 50 nA typical

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Low dropout voltage: 120 mV at 150 mA load

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Initial output voltage accuracy: ±1%

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Accuracy over line, load, and temperature: ±3.5%

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7 fixed output voltage options: 1.2 V to 3.3 V

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Adjustable output option can be set from 1.2 V to 4.2 V

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See data sheet for additional features