IRDC3637 International Rectifier, IRDC3637 Datasheet - Page 14

• Manufacturer Part Number: IRDC3637
• Description: BOARD EVAL SYNC BUCK REGULATOR
• Manufacturer: International Rectifier

Specifications of IRDC3637

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.8V
• Current - Output: 7A
• Voltage - Input: 4.5 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: IR3637
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

IR3637SPBF
TYPICAL APPLICATION
Two Supplies Application, Vcc=Vc=12V, Vin=5V
14
12V
Figure 13 - Typical application using 12V for biasing both Vcc and Vc and 5V for Bus Voltage
C8
C9
R4
C3
SS/SD
Comp
For proper start up the 5V rail needs to start before 12V
Vcc
IR3637
Gnd
U1
Vc
HDrv
LDrv
Fb
C4
D2
www.irf.com
R5
Q1
Q2
C1
R6
L1
C7
06/16/05
Rev.1.1
5V
Vout