ADP7156 1.2 A, Ultralow Noise, High PSRR, Fixed Output, RF Linear Regulator

The ADP7156 is a linear regulator that operates from 2.3 V to 5.5 V and provides up to 1.2 A of output current. Using an advanced proprietary architecture, it provides high power supply rejection and ultralow noise, achieving excellent line and load transient response with only a 10 μF ceramic output capacitor.

There are 16 standard output voltages for the ADP7156. The following voltages are available from stock: 1.2 V, 1.8 V, 2.0 V, 2.5 V, 2.8 V, 3.0 V and 3.3 V. Additional voltages available by special order are 1.3 V, 1.5 V, 1.6 V, 2.2 V, 2.6 V, 2.7 V, 2.9 V, 3.1 V, and 3.2 V.

The ADP7156 regulator typical output noise is 0.9 μV rms from 100 Hz to 100 kHz and 1.7 nV/√Hz for noise spectral density from 10 kHz to 1 MHz. The ADP7156 is available in a 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages, making it not only a very compact solution, but also providing excellent thermal performance for applications requiring up to 1.2 A of output current in a small, low profile footprint.

Applications

Features and Benefits

Input voltage range: 2.3 V to 5.5 V

16 standard voltages between 1.2 V and 3.3 V available

Maximum load current: 1.2 A

Low noise

0.9 μV rms total integrated noise from 100 Hz to 100 kHz

1.6 μV rms total integrated noise from 10 Hz to 100 kHz

Noise spectral density: 1.7 nV/√Hz from 10 kHz to 1 MHz

Power supply rejection ratio (PSRR)

80 dB from 1 kHz to 100 kHz; 60 dB at 1 MHz, VOUT = 3.3 V, VIN = 4.0 V

Dropout voltage: 120 mV typical at IOUT = 1.2 A, VOUT = 3.3 V

Initial accuracy: ±0.6% at ILOAD = 10 mA

Initial accuracy over line, load, and temperature: ±1.5%

Quiescent current: IGND = 4.0 mA at no load, 7 mA at 1.2 A

See data sheet for additional features

Power Management

Linear Regulators

Design Tools

ADI Linear Regulator Design Tool and Parametric Search .

Data Sheets

Document	note
ADP7156: 1.2 A, Ultralow Noise, High PSRR, RF Linear Regulator Data Sheet (Rev. A)	PDF 724.74 K

User Guides

Document	note
UG-809: Evaluating the ADP7156 Ultralow Noise, 1.2 A, Fixed Output, RF Linear Regulator (Rev. 0)	PDF 203.49 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADP7156ACPZ-1.2-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-1.8-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-2.0-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-2.5-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-2.8-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-3.0-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ACPZ-3.3-R7 Production	10 ld LFCSP (3x3mm)	REEL 1500	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-1.2-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-1.8-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-2.0-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-2.5-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-2.8-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-3.0-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y
ADP7156ARDZ-3.3-R7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	3.26	2.69	Y

Evaluation Boards

Part Number	Description	Price	RoHS
ADP7156CP-3.3EVALZ	Evaluation Board	49	Y

ADP7156: 1.2 A, Ultralow Noise, High PSRR, RF Linear Regulator Data Sheet (Rev. A) adp7156

ADI Linear Regulator Design Tool and Parametric Search adp2108

UG-809: Evaluating the ADP7156 Ultralow Noise, 1.2 A, Fixed Output, RF Linear Regulator (Rev. 0) adp7156