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LTM4615EVPBF Datasheet(PDF) 9 Page - Linear Technology

No. de pieza LTM4615EVPBF
Descripción Electrónicos  Triple Output, Low Voltage DC/DC 關Module Regulator
PDF  24 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTM4615EVPBF Datasheet(HTML) 9 Page - Linear Technology

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LTM4615
9
4615f
SIMPLIFIED BLOCK DIAGRAM
VIN
2.375V TO 5.5V
CSS
1000pF
CSSEXT
5.76k
RFB
5.76k
TRACK
SUPPLY
4.99k
C2
470pF
4.7μF
6.3V
4.7μF
6.3V
22μF
6.3V
3
VOUT
1.5V
4A
M1
L
M2
RSS
1M
PGOOD
RUN/SS
TRACK
COMP
FB
SW
VOUT
VIN
GND
4615 F01a
R1
4.99k
CONTROL, DRIVE
POWER FETS
INTERNAL
COMP
22μF
6.3V
+
–
GND3
LDO_RHI
4.99k
GND3
GND3
GND
PGOOD3
4615 F01b
FB3
LDO_OUT
BOOST3
EN3
LDO_IN
0.4V
4.7μF
6.3V
VIN
1.14V TO 3.5V
GND3
1V
4.7μF
6.3V
GND3
4.7μF
CONTROL
ENABLE
10k
RFBLDO
3.32k
VOUT
1V
1.5A
10μF
5V BOOST
POWER GOOD
10μF
Figure 1. Simplified LTM4615 Block Diagram of Each Switching Regulator Channel and the VLDO
DECOUPLING REQUIREMENTS T
A = 25°C. Use Figure 1 configuration for each channel.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CIN
External Input Capacitor Requirement
(VIN = 2.375V to 5.5V, VOUT = 1.5V)
IOUT = 4A
22
μF
COUT
External Output Capacitor Requirement
(VIN = 2.375V to 5.5V, VOUT = 1.5V)
IOUT = 4A
66
100
μF
LDO_IN
LDO Input Capacitance
IOUT = 1A
4.7
10
μF
LDO_OUT
LDO Output Capacitance
IOUT = 1A
10
μF
VLDO Block Diagram
Switching Regulator Block Diagram



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