ADP7112 20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator

The ADP7112 is a CMOS, low dropout (LDO) linear regulator that operates from 2.7 V to 20 V and provides up to 200 mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed signal circuits operating from 20 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection, low noise, and achieves excellent line and load transient response with a small 2.2 µF ceramic output capacitor. The ADP7112 regulator output noise is 11 μV rms independent of the output voltage for the fixed options of 5 V or less.

The ADP7112 is available in 16 fixed output voltage options. The following voltages are available from stock: 1.2 V (adjustable), 1.8 V, 2.5 V, 3.3 V, and 5.0 V. Additional voltages available by special order are 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, 4.2 V, and 4.6 V.

Each fixed output voltage can be adjusted above the initial set point with an external feedback divider. This allows the ADP7112 to provide an output voltage from 1.2 V to VIN − VDO with high PSRR and low noise.

User programmable soft start with an external capacitor is available in the ADP7112. The ADP7112 is available in a 6-ball 1 mm × 1.2mm WLCSP, making it a very compact solution.

Applications

Regulation to noise sensitive applications ADC, DAC circuits, precision amplifiers, power for VCO VTUNE control
Communications and infrastructure
Medical and healthcare
Industrial and instrumentation

Features and Benefits

Low noise: 11 µV rms independent of fixed output voltage
PSRR of 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz, VOUT ≤ 5 V, VIN = 7 V
Input voltage range: 2.7 V to 20 V
Maximum output current: 200 mA
Initial accuracy: ±0.8%
Accuracy over line, load, and temperature ±1.8%, TJ = −40°C to +125°C

Low dropout voltage: 200 mV (typical) at a 200 mA load, VOUT = 5 V
User programmable soft start
Low quiescent current, IGND = 50 μA (typical) with no load
See datasheet for additional features

Power Management

Linear Regulators

Design Tools

ADI Linear Regulator Design Tool and Parametric Search .

Data Sheets

Document	note
ADP7112:20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator Data Sheet (Rev. C)	PDF 599.11 K

User Guides

Document	note
UG-777: Evaluating the ADP7112 Low Noise, CMOS LDO Linear Regulator	PDF 204.57 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 1000+	RoHS
ADP7112ACBZ-1.2-R7 Production	6-Ball Wafer Level Chip Scale Package [WLCSP]	REEL 3000	-40 to 125C	0.53	Y
ADP7112ACBZ-1.8-R7 Production	6-Ball Wafer Level Chip Scale Package [WLCSP]	REEL 3000	-40 to 125C	0.53	Y
ADP7112ACBZ-2.5-R7 Production	6-Ball Wafer Level Chip Scale Package [WLCSP]	REEL 3000	-40 to 125C	0.53	Y
ADP7112ACBZ-3.3-R7 Production	6-Ball Wafer Level Chip Scale Package [WLCSP]	REEL 3000	-40 to 125C	0.53	Y
ADP7112ACBZ-5.0-R7 Production	6-Ball Wafer Level Chip Scale Package [WLCSP]	REEL 3000	-40 to 125C	0.53	Y