Használati útmutató Microchip MIC5203
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2021 Microchip Technology Inc. and its subsidiariesDS20006609A-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 300mV 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 xx
13
4 5
2
GND
µCap 80mA LDO Regulator
Termékspecifikációk
| Márka: | Microchip |
| Kategória: | nincs kategorizálva |
| Modell: | MIC5203 |
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