ADP1761 1 A, Low VIN, Low Noise, CMOS Linear Regulator _ BDTIC a Leading Distributor in China

ADP1761 1 A, Low VIN, Low Noise, CMOS Linear Regulator

The ADP1761 is a low noise, low dropout (LDO) linear regulator. It is designed to operate from a single input supply with an input voltage as low as 1.10 V, without the requirement of an external bias supply to increase efficiency and provide up to 1 A of output current.

The low 30 mV typical dropout voltage at a 1 A load allows the ADP1761 to operate with a small headroom while maintaining regulation and providing better efficiency.

The ADP1761 is optimized for stable operation with small 10 μF ceramic output capacitors. The ADP1761 delivers optimal transient performance with minimal board area.

The ADP1761 is available in fixed output voltages ranging from 0.9 V to 1.5 V. The output of the adjustable output model can be set from 0.5 V to 1.5 V through an external resistor connected between VADJ and ground.

The ADP1761 has an externally programmable soft start time by connecting a capacitor to the SS pin. Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP1761 is available in a small 16-lead LFCSP package for the smallest footprint solution to meet a variety of applications.

Applications

Regulation to noise sensitive applications such as radio frequency (RF) transceivers, analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, phase-locked loops (PLLs), voltage controlled oscillators (VCOs) and clocking integrated circuits
Field-programmable gate array (FPGA) and digital signal processor (DSP) supplies
Medical and healthcare
Industrial and instrumentation

Features and Benefits

1 A maximum output current

Low input voltage supply range

VIN = 1.10 V to 1.98 V, no external bias supply required

VIN = 1.10 V to 1.98 V, no external bias supply required

Fixed output voltage range: VOUT_FIXED = 0.9 V to 1.5 V

Adjustable output voltage range: VOUT_ADJ = 0.5 V to 1.5 V

Ultralow noise: 2 μV rms, 100 Hz to 100 kHz

Noise spectral density

4 nV/√Hz at 10 kHz
3 nV/√Hz at 100 kHz

4 nV/√Hz at 10 kHz

3 nV/√Hz at 100 kHz

Low dropout voltage: 30 mV typical at 1 A load

Operating supply current: 4.5 mA typical at no load

±1.5% fixed output voltage accuracy over line, load, and temperature

Excellent power supply rejection ratio (PSRR) performance

67 dB typical at 10 kHz at 1 A load
51 dB typical at 100 kHz at 1 A load

67 dB typical at 10 kHz at 1 A load

51 dB typical at 100 kHz at 1 A load

Excellent load/line transient response

Soft start to reduce inrush current

Optimized for small 10 μF ceramic capacitors

Current-limit and thermal overload protection

Power-good indicator

Precision enable

16-lead, 3 mm × 3 mm LFCSP package

Power Management

Linear Regulators

Design Tools

ADI Linear Regulator Design Tool and Parametric Search .

Data Sheets

Document	note
ADP1761: 1 A, Low VIN, Low Noise, CMOS Linear Regulator Data Sheet (Rev. A)	PDF 857.46 K

User Guides

Document	note
UG-954: Evaluating the ADP1761/ADP1762/ADP1763 Low VIN, Low Noise, CMOS Linear Regulators (Rev. 0)	PDF 478.97 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADP1761ACPZ-0.9-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-1.0-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-1.1-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-1.2-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-1.3-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-1.5-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ0.95-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y
ADP1761ACPZ1.25-R7 Production	16 ld LFCSP (3x3mm, 1.6mm exposed pad)	REEL 1500	-40 to 125C	3.69	3.09	Y

Evaluation Boards

Part Number	Description	Price	RoHS
ADP1761-1.3-EVALZ	Fixed 1.3V, ADP1761 Evaluation Board	49	Y
ADP1761-ADJ-EVALZ	Adjustable, set to 1.1V, ADP1761 Evaluation Board	49	Y
ADP1762-1.3-EVALZ	Fixed 1.3V, ADP1762 Evaluation Board	49	Y
ADP1762-ADJ-EVALZ	Adjustable, set to 1.1V, ADP1762 Evaluation Board	49	Y
ADP1763-1.3-EVALZ	Fixed 1.3V, ADP1763 Evaluation Board	49	Y
ADP1763-ADJ-EVALZ	Adjustable, set to 1.1V, ADP1763 Evaluation Board	49	Y

ADP1761: 1 A, Low VIN, Low Noise, CMOS Linear Regulator Data Sheet (Rev. A) adp1761

ADI Linear Regulator Design Tool and Parametric Search adp2108

UG-954: Evaluating the ADP1761/ADP1762/ADP1763 Low VIN, Low Noise, CMOS Linear Regulators (Rev. 0) adp1761