ML4865ES-2 Micro Linear, ML4865ES-2 Datasheet - Page 4

• Manufacturer Part Number: ML4865ES-2
• Description: High Voltage High Current Boost Regulator
• Manufacturer: Micro Linear

ML4865
4
V IN
3
V IN
150m
V
I
L
V IN
L
V
100µF
OUT
Figure 3. Inductor Current and Voltage Waveforms
Figure 2. PFM Regulator Detailed Block Diagram
4
0
0
CONTROL
BOOST
V L1
+
–
I SET
A1
Figure 1. Application Test Circuit
L1
Q1 ON
Q2 OFF
Q1
SENSE
GND
V IN
V L1
6
A3
(Sumida CD75)
Q1 OFF
Q2 ON
V L2
ML4865
27µH
+
–
PWR GND
Q3
V OUT
SHDN
Q2
2.42V
V L2
A2
FEEDBACK
CONTROL
+
–
SHUTDOWN
CONTROL
I OUT
100µF
SHDN
V OUT
SENSE
I
I
L(MAX)
SET
7
8
1
R1
R2
C1
V OUT
+
–