Specification	ADP121-ACBZ12R7

Control Features	Enable
Current - Output	150 mA
Current - Quiescent (Iq)	21 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	WLCSP, 4-WFBGA
Protection Features	Under Voltage Lockout (UVLO), Over Temperature, Over Current
PSRR	70 dB
Supplier Device Package	4-WLCSP (0.82x0.82)
Voltage - Input (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	1.2 V

ADP121 Series

150mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT or 4-Ball WLCSP

Part	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Mounting Type	Current - Quiescent (Iq)	Number of Regulators	Protection Features	Control Features	Supplier Device Package	Output Type	Package / Case	Output Configuration	Current - Output	Utilized IC / Part	Regulator Type	Channels per IC	Voltage - Output	Board Type	Supplied Contents	Voltage - Input [Min]	Voltage - Input [Max]	Contents	PSRR	Voltage Dropout (Max) [Max]
Analog Devices ADP121-ACBZ188R7	5.5 V	125 °C	-40 °C	1.875 V	Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	4-WLCSP (0.82x0.82)	1.81 mOhm	4-WFBGA WLCSP	Positive	150 mA
Analog Devices ADP121-ACBZ15R7	5.5 V	125 °C	-40 °C	1.5 V	Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	4-WLCSP (0.82x0.82)	1.81 mOhm	4-WFBGA WLCSP	Positive	150 mA
Analog Devices ADP121CB-1.8-EVALZ														150 mA	ADP121	Positive Fixed	1 - Single	1.8 V	Fully Populated	Board(s)	2.3 V	5.5 V
Analog Devices ADP121-ACBZ18R7	5.5 V	125 °C	-40 °C	1.8 V	Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	4-WLCSP (0.82x0.82)	1.81 mOhm	4-WFBGA WLCSP	Positive	150 mA
Analog Devices ADP121CB-2.5-EVALZ														150 mA	ADP121	Positive Fixed	1 - Single	2 V			2.3 V	5.5 V	Board(s)
Analog Devices ADP121-ACBZ12R7	5.5 V	125 °C	-40 °C	1.2 V	Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	4-WLCSP (0.82x0.82)	1.81 mOhm	4-WFBGA WLCSP	Positive	150 mA										70 dB
Analog Devices ADP121-AUJZ33R7	5.5 V	125 °C	-40 °C	3.3 V	Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable		1.81 mOhm	SOT-23-5 Thin TSOT-23-5	Positive	150 mA										60 dB	0.135 V
Analog Devices ADP121CB-1.2-EVALZ														150 mA	ADP121	Positive Fixed	1 - Single	1.2 V	Fully Populated	Board(s)	2.3 V	5.5 V	Board(s)
Analog Devices ADP121UJZ-REDYKIT														150 mA	ADP121	Positive Fixed	1 - Single	2.8 V 3.3 V	Fully Populated	Board(s)	2.3 V	5.5 V
Analog Devices ADP121-AUJZ30R7	5.5 V	125 °C	-40 °C		Surface Mount	21 µA	1	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable		1.81 mOhm	SOT-23-5 Thin TSOT-23-5	Positive	150 mA

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.01
		10	$ 1.28
		25	$ 1.09
		100	$ 0.87
		250	$ 0.77
		500	$ 0.70
		1000	$ 0.65
	Digi-Reel®	1	$ 2.01
		10	$ 1.28
		25	$ 1.09
		100	$ 0.87
		250	$ 0.77
		500	$ 0.70
		1000	$ 0.65
	Tape & Reel (TR)	3000	$ 0.50
Newark	Each (Supplied on Cut Tape)	1	$ 2.01
		10	$ 1.09
		25	$ 0.98
		50	$ 0.88
		100	$ 0.77
		250	$ 0.73
		500	$ 0.70
		1000	$ 0.64

Description

General part information

ADP121 Series

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.

Documents

Technical documentation and resources

Datasheet

ADP121-ACBZ12R7

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ADP121-ACBZ12R7

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Technical Specifications

ADP121 Series

Pricing

Description

ADP121 Series

Documents

Datasheet

ADP121 Evaluation Board (EVAL-ADP121)

Package Drawing - 4-Ball WLCSP (0.82mm x 0.82mm)

Power Management RedyKit

UG-052: RedyKit for the ADP121 LDO

ADP121 Series