LTM4627 データシートの表示（PDF） - Linear Technology
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LTM4627 Datasheet PDF : 32 Pages
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BLOCK DIAGRAM
VIN
R1
VOUT_LCL
> 1.4V = ON
< 1.1V = OFF
MAX = 5V
RUN
R2
COMP
RFB
90.9k
SGND
VFB
fSET
RfSET
100k
TRACK/SS
CSS
MODE_PLLIN
INTVCC
EXTVCC
VOUT
1M
INTERNAL
COMP
5.1V
60.4k
POWER
CONTROL
INTERNAL
LOOP
FILTER
250k
C
LTM4627
1.5µF
INTVCC
10k
PGOOD
VIN
+
VIN
4.5V TO 20V
CIN
M1
0.47µH
VOUT
VOUT
1V
+
15A
10µF
COUT
M2
GND
INTVCC
DIFF
AMP
VOSNS–
VOSNS+
DIFF_OUT
4627 F01
Figure 1. Simplified LTM4627 Block Diagram
DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration.
SYMBOL
CIN
PARAMETER
External Input Capacitor Requirement
(VIN = 4.5V to 20V, VOUT = 1.5V)
CONDITIONS
IOUT = 15A
MIN TYP MAX UNITS
66
µF
COUT
External Output Capacitor Requirement
IOUT = 15A
(VIN = 4.5V to 20V, VOUT = 1.5V)
200
µF
For more information www.linear.com/LTM4627
4627fc
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