ML4865CS-2 Fairchild, ML4865CS-2 Datasheet - Page 4
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ML4865CS-2
Manufacturer Part Number
ML4865CS-2
Description
High Voltage High Current Boost Regulator
Manufacturer
Fairchild
Datasheet
1.ML4865CS-2.pdf
(10 pages)
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ML4865
4
V IN
3
V IN
150mΩ
V
I
L
V IN
L
100µF
V
OUT
Figure 3. Inductor Current and Voltage Waveforms
0
0
Figure 2. PFM Regulator Detailed Block Diagram
4
CONTROL
BOOST
V L1
+
–
I SET
A1
Figure 1. Application Test Circuit
Q1 ON
Q2 OFF
L1
Q1
SENSE
GND
V IN
V L1
(Sumida CD75)
6
A3
Q1 OFF
Q2 ON
ML4865
27µH
V L2
PWR GND
+
–
SHDN
V OUT
Q3
V L2
Q2
2.42V
A2
FEEDBACK
CONTROL
+
–
SHUTDOWN
CONTROL
100µF
I OUT
SENSE
I
I
L(MAX)
SHDN
SET
V OUT
7
8
1
PRODUCT SPECIFICATION
R1
R2
REV. 1.0.2 8/10/01
C1
V OUT
+
–
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