DC1041A-B Linear Technology, DC1041A-B Datasheet - Page 8

• Manufacturer Part Number: DC1041A-B
• Description: BOARD DEMO LTM4601HV
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1041A-B

• Design Resources: LTM4601HV Spice Model LTM4601 Gerber Files DC1041 Design File DC1041 Schematic
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 0.6V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, or 5V
• Current - Output: 12A
• Voltage - Input: 4.5 ~ 28 V
• Regulator Topology: Buck
• Frequency - Switching: 800kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4601HV
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SI PLIFIED
LTM4601HV
PIN FUNCTIONS
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
Amplifi er Compensation Point. The current comparator
threshold increases with this control voltage. The voltage
8
W
C
19.1k
<0.9V = OFF
R
SS
>2V = ON
MAX = 5V
SET
TRACK/SS
V
BLOCK DIAGRA
OUT_LCL
PGOOD
MARG1
MARG0
INTV
MPGM
DRV
COMP
PLLIN
SGND
RUN
f
V
SET
CC
CC
FB
(See Package Description for Pin Assignment)
INTERNAL
COMP
39.2k
Figure 1. Simplifi ed LTM4601HV Block Diagram
4.7μF
60.4k
W
50k
1M
POWER CONTROL
50k
50k
V
OUT
5.1V
ZENER
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 V
has a 5.1V zener to ground. Maximum pin voltage is 5V.
Limit current into the RUN pin to less than 1mA.
V
bypass the remote sense amplifi er, or DIFFV
to this pin when remote sense amplifi er is used.
OUT_LCL
10k
(Pin L12): V
INTV
CC
–
+
Q1
Q2
10k
10k
22μF
OUT
1.5μF
10k
connects directly to this pin to
PGND
V
V
DIFFV
C
+
OSNS
OSNS
OUT
4601HV F01
OUT
+
–
+
C
IN
IN
V
4.5V TO 28V
V
2.5V
12A
IN
OUT
to this pin that is
OUT
connects
4601hvfa