iru3011 International Rectifier Corp., iru3011 Datasheet - Page 5

• Manufacturer Part Number: iru3011
• Description: 5-bit Programmable Synchronous Buck Controller Ic -
• Manufacturer: International Rectifier Corp.

BLOCK DIAGRAM
Rev. 1.6
08/20/02
OVP
Gnd
V12
D0
D1
D2
D3
D4
V5
18
19
16
9
4
5
6
7
8
UVLO
DAC,
Logic
Ctrl
5Bit
1.18Vset
Enable
Vset
Enable
Figure 2 - Simplified block diagram of the IRU3011.
Start &
Slope
Comp
Logic
Fault
Soft
+
Vset
www.irf.com
Enable
Osc
Enable
Control
PWM
Current
Over
1.1Vset
0.9Vset
200uA
V12
V12
IRU3011
10
14
17
13
12
20
2
3
V
HDrv
LDrv
CS-
CS+
Ct
SS
PGd
FB
5