MCP1703 Datasheet, PDF (1/24 Pages) Microchip Technology – 250 mA, 16V, Low Quiescent Current

MCP1703
250 mA, 16V, Low Quiescent Current
Features
• 2.0 µA Typical Quiescent Current
• Input Operating Voltage Range: 2.7V to16.0V
• 250 mA Output Current for Output Voltages ≥ 2.5V
• 200 mA Output Current for Output Voltages < 2.5V
• Low Drop Out Voltage, 625 mV typical @ 250 mA
for V_R = 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 mV increments available upon
request)
• Stable with 1.0 µF to 22 µF 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
• Battery Powered Data Loggers
Description
The MCP1703 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 250 mA 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 battery-powered applications, 9V alka-
line and one or two cell Li-Ion-powered applications.
The MCP1703 is capable of delivering 250 mA with
only 625 mV (typical) of input to output voltage differen-
tial (V_OUT = 2.8V). The output voltage tolerance of the
MCP1703 is typically ±0.4% at +25°C and ±3%
maximum over the operating junction temperature
range of -40°C to +125°C. Line regulation is ±0.1%
typical at +25°C.
Output voltages available for the MCP1703 range from
1.2V to 5.5V. The LDO output is stable when using only
1 µF of output capacitance. Ceramic, tantalum or
aluminum electrolytic capacitors can all be used for
input and output. Overcurrent limit and overtemperature
shutdown provide a robust solution for any application.
Package options include the SOT-223-3, SOT-23A,
and SOT-89-3.
Related Literature
• AN765, “Using Microchip’s Micropower LDOs”,
DS00765, Microchip Technology Inc., 2002
• AN766, “Pin-Compatible CMOS Upgrades to
BiPolar LDOs”, DS00766,
Microchip Technology Inc., 2002
• AN792, “A Method to Determine How Much
Power a SOT23 Can Dissipate in an Application”,
DS00792, Microchip Technology Inc., 2001
Package Types
3-Pin SOT-23A
V_IN
3
12
GND V_OUT
3-Pin SOT-89
V_IN
123
GND V_IN V_OUT
SOT-223-3
4
1 23
V_{IN GND VOUT}
© 2007 Microchip Technology Inc.
DS22049A-page 1