MCP1700 Datasheet, PDF (1/22 Pages) Microchip Technology – Low Quiescent Current LDO

M
MCP1700
Low Quiescent Current LDO
Features
• 1.6 µA Typical Quiescent Current
• Input Operating Voltage Range: 2.3V to 6.0V
• Output Voltage Range: 1.2V to 5.0V
• 250 mA Output Current for output voltages ≥ 2.5V
• 200 mA Output Current for output voltages < 2.5V
• Low Dropout (LDO) voltage
- 178 mV typical @ 250 mA for V_OUT = 2.8V
• 0.4% Typical Output Voltage Tolerance
• Standard Output Voltage Options:
- 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
• Stable with 1.0 µF Ceramic Output capacitor
• 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
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
Description
The MCP1700 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 250 mA of
current while consuming only 1.6 µA of quiescent
current (typical). The input operating range is specified
from 2.3V to 6.0V, making it an ideal choice for two and
three primary cell battery-powered applications, as well
as single cell Li-Ion-powered applications.
The MCP1700 is capable of delivering 250 mA with
only 178 mV of input to output voltage differential
(V_OUT = 2.8V). The output voltage tolerance of the
MCP1700 is typically ±0.4% at +25°C and ±3%
maximum over the operating junction temperature
range of -40°C to +125°C.
Output voltages available for the MCP1700 range from
1.2V to 5.0V. The LDO output is stable when using only
1 µF 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 SOT23, SOT89-3 and
TO92.
Package Types
3-Pin SOT23-A 3-Pin SOT-89
V_IN
V_IN
3
MCP1700
MCP1700
12
GND V_OUT
123
GND V_IN V_OUT
3-Pin TO-92
MCP1700
123
GND V_IN V_OUT
 2003 Microchip Technology Inc.
DS21826A-page 1