ML4851IS-5 데이터 시트보기 (PDF) - Micro Linear Corporation
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ML4851IS-5 Datasheet PDF : 9 Pages
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ML4851
VIN
100µF
1µF
27µH
(Sumida CD75)
RA
ML4851
VIN PWR GND
VREF
RESET
GND
VL
DETECT VOUT
RB
100µF
VOUT
IOUT
Figure 1. Application Test Circuit
L1
VIN
6
VL
START-UP
Q2
A2
VOUT
5
SQ
Q1
5µs
ONE SHOT
RQ
R1
A1
VREF
R2
Figure 2. PFM Regulator Block Diagram
+
C1 VOUT
–
INDUCTOR
CURRENT
Q(ONE SHOT)
Q2
Q1 ON
ON
Q1 & Q2 OFF
Q2
Q1 ON ON
Figure 3. PFM Inductor Current Waveforms and Timing
4
July, 2000 DATASHEET
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