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ML4872 Datasheet(PDF) 4 Page - Micro Linear Corporation

Part # ML4872
Description  High Current Boost Regulator with Shutdown
PDF  9 Pages
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Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4872 Datasheet(HTML) 4 Page - Micro Linear Corporation

  ML4872 Datasheet HTML 1Page - Micro Linear Corporation ML4872 Datasheet HTML 2Page - Micro Linear Corporation ML4872 Datasheet HTML 3Page - Micro Linear Corporation ML4872 Datasheet HTML 4Page - Micro Linear Corporation ML4872 Datasheet HTML 5Page - Micro Linear Corporation ML4872 Datasheet HTML 6Page - Micro Linear Corporation ML4872 Datasheet HTML 7Page - Micro Linear Corporation ML4872 Datasheet HTML 8Page - Micro Linear Corporation ML4872 Datasheet HTML 9Page - Micro Linear Corporation  
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4
ML4872
Figure 1. Application Test Circuit
Figure 2. PFM Regulator Block Diagram
Figure 3. Inductor Current and Voltage Waveforms
ML4870
IOUT
200µF
100µF
VIN
20µH
(Sumida CD75)
VL1
VIN
GND
SHDN
PWR GND
NC
VL2
VOUT
Q1 ON
Q2 OFF
Q1 OFF
Q2 ON
IL
VL2
IL(MAX)
ISET
VOUT
0
0
VL2
5
VOUT
6
+
–
VIN
IL
2
2.4V
START-UP
3
GND
VL1
1
SYNCHRONOUS
RECTIFIER
CONTROL
BOOST
CONTROL
+
–
+
–
8
PWR GND
A1
A2
A3
Q1
Q2
VOUT
RSENSE
ISET
SHDN
4



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