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 ADP165AUJZ-2.3-R7 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.
Feature
- Very low quiescent currentIQ = 590 nA with 0 µA loadIQ = 890 nA with 1 µA load
- Maintains very low quiescent current in dropout (pass through mode):IQ_DROP = 720 nA with 0 µA loadIQ_DROP = 1200 nA with 1 µA load
- Stable with 1 µF ± 30% ceramic input and output capacitors
- Maximum load current: ILOAD_MAX: 150 mA
- Input voltage range: 2.2 V to 5.5 V
- Low shutdown current: 50 nA typical
- Low dropout voltage: 120 mV at 150 mA load
- Initial output voltage accuracy: ±1%
- Accuracy over line, load, and temperature: ±3.5%
- 7 fixed output voltage options: 1.2 V to 3.3 V
- Adjustable output option can be set from 1.2 V to 4.2 V
- See data sheet for additional features
Applications
- Portable and battery-powered equipment
- Post dc-to-dc regulation
- Portable medical devices
- Wireless sensor network (WSN) devices
(Picture: Pinout)
