MCP1703A
MCP1703A is Low Quiescent Current LDO Regulator manufactured by Microchip Technology.
Features
:
- Reduced Ground Current During Dropout
- Faster Startup Time
- 2.0 µA Typical Quiescent Current
- Input Operating Voltage Range: 2.7V to16.0V
- 250 m A Output Current for Output Voltages ≥ 2.5V
- 200 m A Output Current for Output Voltages < 2.5V
- Low Dropout Voltage, 625 m V Typical @ 250 m A for VR = 2.8V
- 0.4% Typical Output Voltage Tolerance
- Standard Output Voltage Options:
- 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V
- Output Voltage Range: 1.2V to 5.5V in 0.1V Increments (50 m V increments available upon request)
- A/D Friendly Voltage Options: 2.05V, 3.07V, 4.1V
- Stable with 1.0 µF to 22 µF Ceramic Output
Capacitance
- Short-Circuit Protection
- Overtemperature Protection
Applications:
- Battery-Powered Devices
- Battery-Powered Alarm Circuits
- Smoke Detectors
- CO2 Detectors
- Pagers and Cellular Phones
- Smart Battery Packs
- Low Quiescent Current Voltage Reference
- PDAs
- Digital Cameras
- Microcontroller Power
- Solar-Powered Instruments
- Consumer Products
Related Literature:
- AN765, “Using Microchip’s Micropower LDOs”, DS00765, Microchip Technology Inc., 2007
- AN766, “Pin-patible CMOS Upgrades to Bipolar LDOs”, DS00766, Microchip Technology Inc., 2003
- AN792, “A Method to Determine How Much Power a SOT23 Can Dissipate in an Application”, DS00792, Microchip Technology Inc., 2001
Description
:
The MCP1703A is an improved version of the MCP1703 low dropout (LDO) voltage regulator that can deliver up to 250 m A of current while consuming only 2.0 µA of quiescent current (typical). The input operating range is specified from 2.7V to 16.0V, making it an ideal choice for two to six primary cell batterypowered applications, 9V alkaline and one or two-cell Li-Ion-powered applications.
The MCP1703A is capable of delivering 250 m A with only 625 m V (typical) of input to output voltage differential (VOUT = 2.8V). The output voltage tolerance of the MCP1703A is typically ±0.4% at +25°C and ±3% maximum over the operating junction temperature...
