Microchip MCP1801 Manual


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Side 1/28
2010 Microchip Technology Inc. DS22051D-page 1
MCP1801
Features:
150 mA Maximum Output Current
Low Dropout Voltage, 200 mV typical @ 100 mA
25 µA Typical Quiescent Current
0.01 µA Typical Shutdown Current
Input Operating Voltage Range: 2.0V to 10.0V
Standard Output Voltage Options:
- 0.9V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 6.0V
Output Voltage Accuracy:
- ±2% (VR > 1.5V), ±30 mV (VR 1.5V)
Stable with Ceramic Output Capacitors
Current Limit Protection
Shutdown Pin
High PSRR: 70 dB typical @ 10 kHz
Applications:
Battery-powered Devices
Battery-powered Alarm Circuits
Smoke Detectors
• CO2 Detectors
Pagers and Cellular Phones
Wireless Communications Equipment
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 Microchips 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 MCP1801 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 150 mA of
current while consuming only 25 µA of quiescent
current (typical). The input operating range is specified
from 2.0V to 10.0V, 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 MCP1801 is capable of delivering 100 mA with
only 200 mV (typical) of input to output voltage
differential (VOUT = 3.3V). The output voltage tolerance
of the MCP1801 at +25°C is typically ±0.4% with a
maximum of ±2%. Line regulation is ±0.01% typical at
+25°C.
The LDO output is stable with a minimum of 1 µF of
output capacitance. Ceramic, tantalum, or aluminum
electrolytic capacitors can all be used for input and
output. Overcurrent limit with current foldback provides
short-circuit protection. A shutdown (SHDN) function
allows the output to be enabled or disabled. When
disabled, the MCP1801 draws only 0.01 µA of current
(typical).
The MCP1801 is available in a SOT-23-5 package.
Package Types
SOT-23-5
123
5 4
VOUT NC
VIN SHDNVSS
150 mA, High PSRR, Low Quiescent Current LDO


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MCP1801

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