Line Card

ADP120: 100 mA, Low Quiescent Current, CMOS Linear Regulator

 2009-07-10

【Basic Info】

【Product Feature】

* Input voltage range: 2.3 V to 5.5 V
* Output voltage range: 1.2 V to 3.3 V
* Output current: 100 mA
* Low quiescent current
* IGND = 11 μA with zero load
* IGND = 22 μA with 100 mA load
* Low shutdown current: <1 μA
* Low dropout voltage
60 mV @ 100 mA load
* High PSRR
73 dB @ 1 kHz at VOUT = 1.2 V
70 dB @ 10 kHz at VOUT = 1.2 V
* Low noise: 40 μV rms at VOUT = 1.2 V
* No noise bypass capacitor required
* Initial accuracy: ±1%
* Stable with small 1 μF ceramic output capacitor
* Vout Preset: 16 Presets From 1.2-3.3V
* Vout Adj Range: n/a
* Vin Range (Vmin to Vmax): 2.3 to 5.5
* Iout (max): 100mA
* Supply Current: 35µA
* Vdropout @ Rated Iout: 60mV to 80mV
* Operating Temp Range: -40 to +125
* Vout Total Acc: 2% @ 10 mA - Iout max
* Package: TSOT-5,WLCSP-4
* # of Outputs: 1
* Line Regulation: 300µV/V
* Load Regulation: 10nV/mA
* Shutdown: Yes

【Application】

* battery-operated portable device

【Overview】

The ADP120 is a low quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 100 mA of output current. The low 60 mV dropout voltage at 100 mA load improves efficiency and allows operation over a wide input voltage range. The low 22 μA of quiescent current at full load makes the ADP120 ideal for battery-operated portable equipment.

The ADP120 is available in output voltages ranging from 1.2 V to 3.3 V. The part is optimized for stable operation with small 1 μF ceramic output capacitors. The ADP120 delivers good transient performance with minimal board area. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP120 is available in a tiny 5-lead TSOT and a 4-ball 0.4 mm pitch WLCSP and utilizes the smallest footprint solution for use in a variety of portable applications.