MCP1703_11 Datasheet, PDF (1/32 Pages) Microchip Technology – 250 mA, 16V, Low Quiescent Current LDO Regulator

MCP1703
250 mA, 16V, Low Quiescent Current LDO Regulator
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 Dropout 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 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
• Battery-Powered Data Loggers
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 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
alkaline 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
differential (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,
2x3 DFN-8, and SOT-89-3.
Package Types
2x3 DFN-8 *
V_OUT 1
8 V_IN
NC 2 _EP 7 NC
NC 3 ⁹ 6 NC
GND 4
5 NC
3-Pin SOT-23A
V_IN
3
12
GND V_OUT
3-Pin SOT-89
V_IN
SOT-223-3
123
GND V_IN V_OUT
1 23
V_{IN GND VOUT}
* Includes Exposed Thermal Pad (EP); see Table 3-1.
© 2011 Microchip Technology Inc.
DS22049F-page 1