SRM4010 Microsemi Commercial Components Group, SRM4010 Datasheet - Page 9

• Manufacturer Part Number: SRM4010
• Description: DIODE SYNC POWERMOD 40A SMD
• Manufacturer: Microsemi Commercial Components Group

Specifications of SRM4010

• Applications: Processor
• Operating Temperature: -40°C ~ 80°C
• Package / Case: SMD 1.83mm x 1.43mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Mounting Type: -
• Current - Supply: -
• Voltage - Supply: -

Very Low Output Voltage Converter
For voltages below 1.25 volts, R3 can be moved to REG out to allow regulation below the 1.24 volt reference as shown in Figure 8. In
this case the REG
the reference. There are other variations of closing the feedback loop that can be used, but in many cases the availability of the REG
makes the task easier.
In applications where the peak transformer voltage is less than about 8 volts, power can be supplied to the module through an additional
winding on the power transformer. This requires only the additional winding and one diode. This is illustrated in figure 8 with
transformer winding T1E and D4.
Copyright
2004-02-06
C4
5
6
1
2000
REV. 1
T1C
D3
OUT
is used to feed current into the TLV431’s summing node. This causes the output to regulate at a voltage lower than
CURRENT
MODE
CONTROL
R4
C O L O R A D O D I V I S I O N
T1B
800 Hoyt Street, Broomfield, CO. 80020, 303-469-2161, Fax: [phone]
R6
SRM
4
3
1
D1
TM
1
2
1
Q1
R1
4010 Configured for outputs below 1.25 Volts
T1A
7
8
T6D
2
Colorado Division
Microsemi
FWD
Pgnd
U1
Figure 8
6
CTCH
1
10
Sgnd
SRM
3
T1E
SPD CPDT
9
47 PF
TM
C2
4010
8
40A Synchronous Rectifier Module
7
REGout
REGin
CDLY
C3
22 PF
4
5
9
3
4
D4
1
2
ISO1
R3
L1
R5
U2
TLV431A
C5
R2
SRM
C1
TM
4010
Page 9
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