SLVSAB1D – JUNE 2011 – REVISED JULY 2012
FUNCTIONAL BLOCK DIAGRAMS
V
IN
VIN
C
IN
Band Gap
UVLO Comp.
with internal
reference
VRef1
Temp. Sensor/
Thermal Shutdown
Q1
VRef1
EN
Logic
Control
Regulator
Control
Error
Amp.
V
OUT
VOUT
RDELAY
C
DLY
Over
Current
Detection
C
OUT
R
RST
Voltage
Supervisor with
Reset Delay
Q2
nRST
RESET
Charge Pump
Current
Regulator
Oscillator
Watchdog
Oscillator
R
OSC
ROSC
R
FLT
Timer
Q3
GND
WD_FLT
FAULT
Watchdog
Fault Control
WD
nWD_EN
Figure 3. TPS7A6333-Q1 and TPS7A6350-Q1 (Fixed Output Voltage With FAULT Output)
V
IN
VIN
C
IN
Band Gap
UVLO Comp.
with internal
reference
VRef1
Temp. Sensor/
Thermal Shutdown
Q1
VRef1
EN
Logic
Control
Regulator
Control
Error
Amp.
V
OUT
VOUT
R1
C
OUT
FB
Over Current
Detection
RDELAY
C
DLY
R2
R
RST
Voltage
Supervisor with
Reset Delay
Charge Pump
Current
Regulator
Oscillator
Watchdog
Oscillator
Q2
nRST
RESET
R
OSC
ROSC
R
FLT
Timer
Q3
GND
WD_FLT
FAULT
Watchdog
Fault Control
WD
nWD_EN
Figure 4. TPS7A6301 (Adjustable Output Voltage With FAULT Output)
Copyright © 2011–2012, Texas Instruments Incorporated
7
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