LTM4606IV-PBF View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTM4606IV-PBF' PDF : 24 Pages View PDF
LTM4606
PIN FUNCTIONS
COMP (Pins A11, D11): Current Control Threshold and Er-
ror 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 (Pins A10, B9): Run Control Pins. A voltage above
1.9V will turn on the module, and below 1V will turn off
the module. A programmable UVLO function can be ac-
complished with a resistor from VIN to this pin that has a
5.1V zener to ground. Maximum pin voltage is 5V.
BLOCK DIAGRAM
>1.9V = ON
<1V = OFF
MAX = 5V
RUN
PGOOD
COMP
RFB
19.1k
SGND
MARG1
MARG0
VFB
fSET
FCB
MPGM
TRACK/SS
CSS
PLLIN
INTVCC
DRVCC
VOUT
INTERNAL
COMP
60.4k
5.1V
ZENER
POWER CONTROL
41.2k
10k
50k 50k
4.7μF
50k
1.5μF
INPUT
FILTER
VIN
+
4.5V TO 28V
CIN
M1
NOISE
CANCEL-
LATION
M2
VD
CD
VOUT
2.5V
AT 6A
22μF
+
COUT
PGND
4606 F01
Figure 1. Simplified Block Diagram
DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration.
SYMBOL
CIN
COUT
PARAMETER
External Input Capacitor Requirement
(VIN = 4.5V to 28V, VOUT = 2.5V)
External Output Capacitor Requirement
(VIN = 4.5V to 28V, VOUT = 2.5V)
CONDITIONS
IOUT = 6A
IOUT = 6A
MIN TYP MAX UNITS
10
μF
100 200
μF
4606f
8
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