ADP1765 Series

5 A, Low VIN, Low Noise, CMOS Linear Regulator

Catalog

5 A, Low VIN, Low Noise, CMOS Linear Regulator

Part	Current - Output	Supplied Contents	Regulator Type	Board Type	Utilized IC / Part	PSRR [Min]	PSRR [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Number of Regulators	Output Configuration	Current - Supply (Max) [Max]	Control Features	Output Type	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Package / Case	Protection Features	Mounting Type	Voltage - Output
Analog Devices ADP1765-ADJ-EVALZ	5 A	Board(s)	Positive Adjustable	Fully Populated	ADP1765
Analog Devices ADP1765ACPZ-1.5-R7	5 A					33 dB	61 dB	-40 °C	125 ¯C	1	Positive	25 mA	Enable Power Good Soft Start	1.81 mOhm	16-LFCSP (3x3)	1.98 V	1.5 V	16-WFQFN Exposed Pad CSP	Current Limit Thermal Overload	Surface Mount
Analog Devices ADP1765ACPZ-0.9-R7	5 A					33 dB	61 dB	-40 °C	125 ¯C	1	Positive	25 mA	Enable Power Good Soft Start	1.81 mOhm	16-LFCSP (3x3)	1.98 V	0.9 V	16-WFQFN Exposed Pad CSP	Current Limit Thermal Overload	Surface Mount
Analog Devices ADP1765ACPZ-1.1-R7	5 A					33 dB	61 dB	-40 °C	125 ¯C	1	Positive	25 mA	Enable Power Good Soft Start	1.81 mOhm	16-LFCSP (3x3)	1.98 V	1.1 V	16-WFQFN Exposed Pad CSP	Current Limit Thermal Overload	Surface Mount
Analog Devices ADP1765-1.0-EVALZ	5 A	Board(s)	Positive Fixed	Fully Populated	ADP1765																1 V
Analog Devices ADP1765ACPZ-1.2-R7	5 A					33 dB	61 dB	-40 °C	125 ¯C	1	Positive	25 mA	Enable Power Good Soft Start	1.81 mOhm	16-LFCSP (3x3)	1.98 V	1.2 V	16-WFQFN Exposed Pad CSP	Current Limit Thermal Overload	Surface Mount

Catalog

5 A, Low VIN, Low Noise, CMOS Linear Regulator

Key Features

• 5 A maximum output current

• Low input voltage supply rangeVIN= 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): 0.55 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: 5 nV/√Hz at 10 kHz; 4 nV/√Hz at 100 kHz

• Low dropout voltage: 59 mV typical at 5 A load

• Operating supply current: 5 mA typical at no load

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

• Excellent power supply rejection ratio (PSRR) performance61 dB typical at 10 kHz at 5 A load43 dB typical at 100 kHz at 5 A load

• 61 dB typical at 10 kHz at 5 A load

• 43 dB typical at 100 kHz at 5 A load

• Excellent load/line transient response

• Soft start to reduce inrush current

• Optimized for small 22 µF ceramic capacitors

• Current-limit and thermal overload protection

• Power-good indicator

• Precision enable

• 16-lead, 3 mm × 3 mm LFCSP package

Description

The ADP1765 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 5 A of output current (IOUT).The low 59 mV typical dropout voltage at a 5 A load allows the ADP1765 to operate with a small headroom while maintaining regulation and providing better efficiency.The ADP1765 is optimized for stable operation with small 22 µF ceramic output capacitors. The ADP1765 delivers optimal transient performance with minimal printed circuit board (PCB) area.The ADP1765 is available in fixed output voltages ranging from 0.55 V to 1.5 V. The output voltage (VOUT) 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 ADP1765 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 ADP1765 is available in a small, 16-lead LFCSP package for the smallest footprint solution to meet a variety of applications.APPLICATIONSRegulation 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 circuitsField-programmable gate array (FPGA) and digital signal processor (DSP) suppliesMedical and healthcareIndustrial and instrumentation