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ML4771CS Datasheet(PDF) 4 Page - Micro Linear Corporation

Part # ML4771CS
Description  High Current Boost Regulator
PDF  8 Pages
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Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4771CS Datasheet(HTML) 4 Page - Micro Linear Corporation

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4
ML4771
Figure 1. Application Test Circuit.
Figure 3. Inductor Current and Voltage Waveforms.
Figure 2. PFM Regulator Block Diagram.
ML4771
IOUT
200µF
100µF
VIN
20µH
(Sumida CD75)
VL1
VIN
GND
SENSE
PWR GND
NC
VL2
VOUT
268k
Ω
259k
Ω
VIN
VL2
5
VOUT
4
SENSE
6
+
–
VIN
IL
2
2.57V
START-UP
3
GND
VL1
1
SYNCHRONOUS
RECTIFIER
CONTROL
BOOST
CONTROL
+
–
+
–
8
PWR GND
A1
A2
A3
R1
R2
Q1
Q2
VOUT
RSENSE
ISET
Q1 ON
Q2 OFF
Q1 OFF
Q2 ON
IL
VL2
IL(MAX)
ISET
VOUT
0
0



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