MCP1700
Low Quiescent Current LDO
Features: General Description:
1.6 A Typical Quiescent Current The MCP1700 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 250 mA of
Input Operating Voltage Range: 2.3V to 6.0V
current while consuming only 1.6A of quiescent
Output Voltage Range: 1.2V to 5.0V
current (typical). The input operating range is specified
250 mA Output Current for Output
from 2.3V to 6.0V, making it an ideal choice for two and
Voltages 2.5V
three primary cell battery-powered applications, as well
200 mA Output Current for Output
as single cell Li-Ion-powered applications.
Voltages < 2.5V
The MCP1700 is capable of delivering 250 mA with
Low Dropout (LDO) Voltage
only 178mV of input to output voltage differential
- 178 mV Typical @ 250 mA for V =2.8V
OUT (V =2.8V). The output voltage tolerance of the
OUT
0.4% Typical Output Voltage Tolerance
MCP1700 is typically 0.4% at +25C and 3%
maximum over the operating junction temperature
Standard Output Voltage Options:
range of -40C to +125C.
- 1.2V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V
Output voltages available for the MCP1700 range from
Stable with 1.0 F Ceramic Output Capacitor
1.2V to 5.0V. The LDO output is stable when using only
Short Circuit Protection
1F output capacitance. Ceramic, tantalum or
Overtemperature Protection
aluminum electrolytic capacitors can all be used for
input and output. Overcurrent limit and overtemperature
Applications:
shutdown provide a robust solution for any application.
Battery-Powered Devices
Package options include SOT-23, SOT-89, TO-92 and
2x2 DFN-6.
Battery-Powered Alarm Circuits
Smoke Detectors
Package Types
CO Detectors
2
Pagers and Cellular Phones
3-Pin SOT-23 3-Pin SOT-89
Smart Battery Packs
V V
IN IN
Low Quiescent Current Voltage Reference
3
PDAs
MCP1700
Digital Cameras MCP1700
Microcontroller Power
1 2
3
1
2
GND V V
GND V IN OUT
OUT
Related Literature:
3-Pin TO-92 2x2 DFN-6*
AN765, Using Microchips Micropower LDOs
(DS00765), Microchip Technology Inc., 2002
V
IN V
1 6
OUT
AN766, Pin-Compatible CMOS Upgrades to
MCP1700
EP
NC 2 5 NC
BiPolar LDOs (DS00766),
1 2 3
7
Microchip Technology Inc., 2002
GND 3 4 NC
AN792, A Method to Determine How Much
Power a SOT23 Can Dissipate in an Application
(DS00792), Microchip Technology Inc., 2001
GND V V
IN OUT
* Includes Exposed Thermal Pad (EP); see Table 3-1.
2005-2016 Microchip Technology Inc. DS20001826D-page 1MCP1700
Functional Block Diagrams
MCP1700
V V
IN OUT
Error Amplifier
+V
IN
Voltage
-
Reference
+
Overcurrent
Overtemperature
GND
Typical Application Circuits
MCP1700
V
IN
GND
(2.3V to 3.2V)
V
V
OUT
IN
1.8V
C
V
IN
OUT
1 F Ceramic
I
OUT
C
OUT
150 mA
1 F Ceramic
DS20001826D-page 2 2005-2016 Microchip Technology Inc.