The ADP1763ACPZ-R7 is a low noise, low dropout (LDO) linear regulator. Itis designed to operate from a single input supply with an inputvoltage as low as 1.10 V without the requirement of an external biassupply to increase efficiency and provide up to 3 A of output current.
The low 95 mV typical dropout voltage at a 3 A load allows theADP1763ACPZ-R7 to operate with a small headroom while maintainingregulation and providing better efficiency.
The ADP1763ACPZ-R7 is optimized for stable operation with small 10 μFceramic output capacitors. The ADP1763ACPZ-R7 delivers optimaltransient performance with minimal board area.
The ADP1763ACPZ-R7 is available in fixed output voltages ranging from0.9 V to 1.5 V. The output of the adjustable output model can beset from 0.5 V to 1.5 V through an external resistor connectedbetween VADJ and ground.
The ADP1763ACPZ-R7 has an externally programmable soft start time byconnecting a capacitor to the SS pin. Short-circuit and thermaloverload protection circuits prevent damage in adverse conditions.The ADP1763ACPZ-R7 is available in a small 16-lead LFCSP package for thesmallest footprint solution to meet a variety of applications.
Feature
- 3 A maximum output current
- Low input voltage supply range
- 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
- Low dropout voltage: 95 mV typical at 3 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
- 59 dB typical at 10 kHz at 3 A load
- 43 dB typical at 100 kHz at 3 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
Applications
- Regulation to noise sensitive applications such as radiofrequency (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 signalprocessor (DSP) supplies
- Medical and healthcare
- Industrial and instrumentation
(Picture: Pinout)
