PT8139 Datasheet, PDF (1/9 Pages) Texas Instruments – 30-A Programmable Integrated Switching Regulator

PT8139—12V
30-A Programmable Integrated
Switching Regulator
Features
• Single Device: 30ADC
• +12-V Input
• Programmable Output Voltage:
1.7V to 4.0V via 5-Bit Code
• Multiphase Topology
• High Efficiency: 92% @3.3V
• Output Remote Sense
SLTS156
(3/8/2002)
• Short-Circuit Protection
• Thermal Shutdown
• Standby On/Off Control
• Space-Saving Package
• Solderable Copper Case
Description
The PT8139 Excalibur™ module
is a high performance integrated
switching regulator (ISR), housed in
a solderable, 31-pin space-saving
copper package. Operating from an
input voltage of +12V, the module
provides up to 30A of power over a
range of low-output voltages.
The PT8139 incorporates a state-
of-the-art 2-phase multiple power
path. This topology extends the
output current range while improving
both the transient response and input
current ripple.
The PT8139 output voltage is
programmable over the voltage
range, 1.7V to 4.0V, via a 5-bit input
code. This makes the PT8139 an
ideal power source for many highly
integrated digital systems that de-
mand a high power supply current
at low voltages.
The PT8139 features include
short-circuit protection, thermal
shutdown, a Standby (On/Off)
control, and a remote sense to com-
pensate for voltage drop between
the regulator and the load.
Standard Application
Ordering Information
PT8139o = 1.7 to 4.0 Volts
PT Series Suffix (PT1234 x )
Case/Pin
Configuration
Order
Suffix
Package
Code
Vertical
Horizontal
SMD
N
(EKH)
A
(EKF)
C
(EKG)
(Reference the applicable package code drawing for
the dimensions and PC board layout)
VID0
VID1
VID2
VID3
VID4
VID
Common
PROGRAMMING PINS
REMOTE SENSE
11 5 4 3 2 1 31
V_IN
GND
L_in
1µH
12–16
+
C_IN
PT8139
6
17–22
23–30
+
C_OUT
V_OUT
L
O
A
D
GND
STBY*
Cin = Required 1500µF electrolytic
Cout = Required 660µF low ESR OS-Con®, or
1,200µF aluminum electrolytic
Lin = Optional 1µH input choke
For technical support and more information, see inside back cover or visit www.ti.com