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MIC2224 Fiches technique(PDF) 2 Page - Micrel Semiconductor

No de pièce MIC2224
Description  High Efficiency 2MHz PWM Buck Converter with DAC Input and 40mOHM Bypass Switch
Download  13 Pages
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Fabricant  MICREL [Micrel Semiconductor]
Site Internet  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2224 Fiches technique(HTML) 2 Page - Micrel Semiconductor

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Micrel
MIC2224
January 2005
2
M9999-012705
www.micrel.com
Ordering Information
Part Number
Output
Voltage
(1)
Junction Temp. Range
Package
Lead Finish
MIC2224YML
Adj.
–40° to +125°C
3x3 MLF-10L
Pb-free
Pin Configuration
SW
VIN
VIN
EN
PGND
VOUT
VOUT
AGND
1
2
3
4
10
9
8
7
56
AVIN
DAC
EP
3mm x 3mm MLF-10L (ML)
Pin Description
Pin
Pin Name
Pin Function
1
SW
Switch (Output): Internal power MOSFET output switches.
2, 3
VIN
Supply Voltage (Input): Requires bypass capacitor to GND.
4
EN
A low level EN will power down the device, reducing the quiescent current to under 5uA
( typ 1uA )
5
AVIN
Supply Voltage (Input): Requires bypass capacitor to GND.
6
DAC
DAC Control Input. Provides control of output voltage. The output voltage is 3 X the
DAC voltage. (Ex. 0.5VDAC=1.5Vout) Bypass mode is enabled when the DAC voltage
exceeds 1.2V.
7
AGND
Signal Ground of chip
8, 9
VOUT
Source of Internal P-Channel MOSFET and Feedback of internal PWM regulator.
10
PGND
Power Ground of chip.
EP
Exposed Pad
Connect to ground.


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