IR3623MPBF_1 IRF [International Rectifier], IR3623MPBF_1 Datasheet - Page 6

• Manufacturer Part Number: IR3623MPBF_1
• Description: HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING
• Manufacturer: IRF [International Rectifier]

SS2 / SD/MODE
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Block Diagram
SS1 / SD
Track1
Comp1
Comp2
Track2
Enable
SGnd
V
V
Sync
V
Seq
SEN1
POR
V
Vcc
Fb1
Fb2
SEN2
REF
V
P1
Rt
P2
25uA
25uA
0.8V
64uA
64uA
Max
Sequencing
Fig. 2: Simplified block diagram of the IR3623
Error Amp1
Error Amp2
Mode
SS1 / SD
5V_Sns
PGood / OVP
SS1,2
OC1,2
POR
Mode
Regulator
T.S
0.8V
Two Phase
SS
Vcc
Oscillator
2
Ramp2
Ramp1
Generator
Shutdown
UVLO
Fault Ctrl
Thermal
Control
Bias
Mode
OVP1
OVP2
POR
PWM1
PWM2
POR
0.8V
Mode
3V
Ctrl1
Ctrl2
0.3V
Mode
SS2
0.3V
SS1
SS1
SS2
Hiccup
Control
SS1
SS2
3uA
3uA
OVP1
OVP2
POR
OC2
OC1
POR
IR3623MPbF
S
R
S
R
20uA
Q
5V_sns
Q
Ctrl2
Ctrl1
20uA
Ctrl2
Tri_State
Ctrl1
Tri-State
V
OUT3
V
OUT3
OCGnd
V
V
OUT3
OUT3
PWM1
PWM2
Ph_En2
PGood2
OCSet1
OCSet2
5V_sns
OCGnd
Ph_En1
PGood1
OVP_Output
V
Gnd
OUT3
6