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LTM4603HVEV-PBF Datasheet(PDF) 8 Page - Linear Technology

Part # LTM4603HVEV-PBF
Description  6A, 28VIN DC/DC 關Module with PLL, Output Tracking and Margining
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4603HVEV-PBF Datasheet(HTML) 8 Page - Linear Technology

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LTM4603HV
8
4603hvf
SI
PLIFIED BLOCK DIAGRA
Figure 1. Simplified LTM4603HV Block Diagram
MARG0 (Pin C12): This pin is the LSB logic input for the
margining function. Together with the MARG1 pin will
determine if margin high, margin low or no margin state
is applied. The pin has an internal pull-down resistor of
50k. See Applications Information.
MARG1 (Pin D12): This pin is the MSB logic input for the
margining function. Together with the MARG0 pin will
determine if margin high, margin low or no margin state
is applied. The pin has an internal pull-down resistor of
50k. See Applications Information.
SGND (Pin H12): Signal Ground. This pin connects to
PGND at output capacitor point.
COMP (Pin A11): Current Control Threshold and Error
Amplifier Compensation Point. The current comparator
threshold increases with this control voltage. The voltage
ranges from 0V to 2.4V with 0.7V corresponding to zero
sense voltage (zero current).
PGOOD (Pin G12): Output Voltage Power Good Indicator.
Open-drain logic output that is pulled to ground when the
output voltage is not within ±10% of the regulation point,
after a 25μs power bad mask timer expires.
RUN (Pin A10): Run Control Pin. A voltage above 1.9V
will turn on the module, and when below 1.9V, will turn
off the module. A programmable UVLO function can be
accomplished with a resistor from VIN to this pin that has
a 5.1V zener to ground. Maximum pin voltage is 5V.
VOUT_LCL (Pin L12): VOUT connects directly to this pin to
bypass the remote sense amplifier, or DIFFVOUT connects
to this pin when remote sense amplifier is used.
PI FU CTIO S (See Package Description for Pin Assignment)
+
INTERNAL
COMP
SGND
COMP
PGOOD
RUN
VOUT_LCL
>2V = ON
<0.9V = OFF
MAX = 5V
MARG1
MARG0
MPGM
PLLIN
CSS
INTVCC
DRVCC
TRACK/SS
VFB
fSET
50k
33.2k
RFB
19.1k
50k
60.4k
VOUT
1M
5.1V
ZENER
POWER CONTROL
Q1
VIN
4.5V TO 28V
VOUT
2.5V
6A
Q2
10k
10k
10k
50k
10k
INTVCC
22
μF
1.5
μF
CIN
+
COUT
PGND
VOSNS
VOSNS
+
DIFFVOUT
4603HV F01
4.7
μF


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