ADP121
ADP121
PRODUCTION150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT or 4-Ball WLCSP
- Part Models
- 16
- 1ku List Price
- Starting From $0.37
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Overview
- 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
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.
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Evaluation Design File 2
Frequently Asked Question 1
Brochure 1
Circuit Note 6
Rarely Asked Question 1
Analog Dialogue 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADP121-ACBZ12R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ15R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ165R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ18R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ20R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ25R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ28R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ30R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-ACBZ33R7 | 4-Ball WLCSP (0.82mm x 0.82mm) | ||
| ADP121-AUJZ12R7 | 5-Lead TSOT | ||
| ADP121-AUJZ15R7 | 5-Lead TSOT | ||
| ADP121-AUJZ18R7 | 5-Lead TSOT | ||
| ADP121-AUJZ25R7 | 5-Lead TSOT | ||
| ADP121-AUJZ28R7 | 5-Lead TSOT | ||
| ADP121-AUJZ30R7 | 5-Lead TSOT | ||
| ADP121-AUJZ33R7 | 5-Lead TSOT |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 28, 2012 - 11_0175 Shipping Changes for WLCSP Products with 8mm Carrier Tape Width |
||
| ADP121-ACBZ12R7 | PRODUCTION | |
| ADP121-ACBZ15R7 | PRODUCTION | |
| ADP121-ACBZ18R7 | PRODUCTION | |
| ADP121-ACBZ20R7 | Obsolete | |
| ADP121-ACBZ25R7 | PRODUCTION | |
| ADP121-ACBZ28R7 | PRODUCTION | |
| ADP121-ACBZ30R7 | PRODUCTION | |
| ADP121-ACBZ33R7 | PRODUCTION | |
|
Apr 8, 2011 - 11_0028 WLCSP Shipping Changes |
||
| ADP121-ACBZ12R7 | PRODUCTION | |
| ADP121-ACBZ15R7 | PRODUCTION | |
| ADP121-ACBZ18R7 | PRODUCTION | |
| ADP121-ACBZ20R7 | Obsolete | |
| ADP121-ACBZ25R7 | PRODUCTION | |
| ADP121-ACBZ28R7 | PRODUCTION | |
| ADP121-ACBZ30R7 | PRODUCTION | |
| ADP121-ACBZ33R7 | PRODUCTION | |
|
Nov 13, 2024 - 24_0078 Discontinuance of Select 200mm (8 inch) Products Bumped at Amkor Technology Korea (ATK5) |
||
| ADP121-ACBZ20R7 | Obsolete | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADP150 | PRODUCTION | Ultralow Noise, 150 mA CMOS Linear Regulator |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- ADP121-1.2
- ADP121-1.5
- ADP121-1.65
- ADP121-1.8
- ADP121-1.875
- ADP121-2.0
- ADP121-2.5
- ADP121-2.8
- ADP121-3.0
- ADP121-3.3
ADI Linear Regulator Design Tool and Parametric Search
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
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