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ADP121:  150 MA, LOW QUIESCENT CURRENT, CMOS LINEAR REGULATOR IN 5-LEAD TSOT

The ADP121 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range. The low 30 μA of quiescent current at full load makes the ADP121 ideal for battery-operated portable equipment.

The ADP121 is ...More

ADP121:  150 MA, LOW QUIESCENT CURRENT, CMOS LINEAR REGULATOR IN 5-LEAD TSOT

Product Description

The ADP121 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range. The low 30 μA of quiescent current at full load makes the ADP121 ideal for battery-operated portable equipment.

The ADP121 is available in output voltages ranging from 1.2 V to 3.3 V. The parts are optimized for stable operation with small 1 μF ceramic output capacitors. The ADP121 delivers good transient performance with minimal board area.

Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP121 is available in a tiny 5-lead TSOT and 4-ball 0.4 mm pitch WLCSP pack-ages and utilizes the smallest footprint solution to meet a variety of portable applications.

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  • Input voltage range: 2.3 V to 5.5 V
  • Output voltage range: 1.2 V to 3.3 V
  • Output current: 150 mA
  • Low quiescent current
    IGND = 11 μA with 0 μA load
    IGND = 30 μA with 150 mA load
  • Low shutdown current: <1 μA
  • Low dropout voltage
    90 mV @ 150 mA load
  • High PSRR
    70 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
  • See data sheet for additional features
  • Product Description: 150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT
  • Vout Preset (V): 9 Options 1.2V to 2V
  • Vout Adj Range: n/a
  • Vin Range (Vmin to Vmax): 2.5 to 5.5
  • Iout (max): 150mA
  • Supply Current : 40µA
  • Vdropout @ Rated Iout: 90mV to 120mV
  • Vout Total Acc: 2% @ 10 mA - Iout max
  • Package: TSOT-5,WLCSP-4
  • # of Outputs: 1
  • Shutdown: Yes
  • Operating Temp Range: -40 to +125

Typical Application Circuit Diagram for ADP121

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  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
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  • Automotive: -40 to +125 degrees Celsius
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.