Datasheet

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DEVICE INFORMATION
_
+
Thermal
Shutdown
Bandgap
Reference
V
IN
Current
Sense
R2
V
IN
GND
EN
V
OUT
SHUTDOWN
V
ref
UVLO
ILIM
External to
the Device
R1
UVLO
250 kΩ
Bypass
FB
_
+
Thermal
Shutdown
V
IN
Current
Sense
R1
R2
V
IN
GND
EN
V
OUT
SHUTDOWN
V
ref
UVLO
ILIM
Bandgap
Reference
UVLO
250 kΩ
Bypass
TPS79301-EP , , TPS79318-EP , , TPS79325-EP , , TPS79328-EP
TPS793285-EP , TPS79330-EP , TPS79333-EP , TPS793475-EP
SGLS163B – APRIL 2003 – REVISED NOVEMBER 2006
FUNCTIONAL BLOCK DIAGRAM – ADJUSTABLE VERSION
FUNCTIONAL BLOCK DIAGRAM – FIXED VERSION
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME ADJ FIXED
An external bypass capacitor, connected to this terminal, in conjunction with an internal
BYPASS 4 4
resistor, creates a low-pass filter to further reduce regulator noise.
Enable input that enables or shuts down the device. When EN goes to a logic high, the
EN 3 3 I
device is enabled. When the device goes to a logic low, the device is in shutdown mode.
FB 5 N/A I Feedback input voltage for the adjustable device
GND 2 2 Regulator ground
IN 1 1 I Input to the device
OUT 6 5 O Regulated output of the device
6
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