Microchip MIC5203 Manual


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2021 Microchip Technology Inc. and its subsidiaries DS20006609A-page 1
MIC5203
Features
Tiny 4- and 5-Lead Surface-Mount Packages
Wide Selection of Output Voltages
Guaranteed 80 mA Output
Low Quiescent Current
Low Dropout Voltage
Low Temperature Coefficient
Current and Thermal Limiting
Reversed Input Polarity Protection
Zero Off-Mode Current
Logic-Controlled Shutdown
Stability with Low-ESR Ceramic Capacitors
Applications
Cellular Telephones
Laptop, Notebook, and Palmtop Computers
Battery-Powered Equipment
Barcode Scanners
SMPS Post-Regulator and DC/DC Modules
High-Efficiency Linear Power Supplies
General Description
The MIC5203 is a µCap 80 mA linear voltage regulator
with very low dropout voltage (typically 20 mV at light
loads and 300 mV at 80 mA) and very low ground
current (225 µA at 20 mA output), offering better than
3% initial accuracy with a logic-compatible enable
input.
The µCap regulator design is optimized to work with
low- value, low-cost ceramic capacitors. The outputs
typically require only 0.47 µF of output capacitance for
stability.
Designed especially for hand-held, battery-powered
devices, the MIC5203 can be controlled by a CMOS or
TTL compatible logic signal. When disabled, power
consumption drops nearly to zero. If on-off control is not
required, the enable pin may be tied to the input for 3-
terminal operation. The ground current of the MIC5203
increases only slightly in dropout, further prolonging
battery life. Key MIC5203 features include current
limiting, overtemperature shutdown, and protection
against reversed battery.
The MIC5203 is available in 2.8V, 3.0V, 3.3V, 3.6V,
3.8V, 4.0V, 4.5V, 4.75V, and 5.0V fixed voltages. Other
voltages are available.
Package Types
MIC5203
4-Lead SOT-143 (M4)
GN D
O U TIN
E N
L A x x
Part
Identification
12
3 4
MIC5203
5-Lead SOT-23 (M5)
IN
O U T
N C
E N
L K x x
13
4 5
2
GN D
µCap 80 mA LDO Regulator


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MIC5203

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