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30-A, 5-V Input Non-Isolated
Wide-Output Adjust Power Modules
SLTS210B – MAY 2003 – REVISED JANUARY 2004
Standard Application
Features
Up to 30 A Output Current
5-V Input Voltage
Wide-Output Voltage Adjust
(0.8 V to 3.6 V)
180 W/in Power Density
On/Off Inhibit
Efficiencies up to 94 %
Pre-Bias Startup
Margin Up/Down Controls
Under-Voltage Lockout
Auto-Track Sequencing
Output Over-Current Protection
(Non-Latching, Auto-Reset)
Over-Temperature Protection
Operating Temp: –40 to +85 °C
Safety Agency Approvals:
UL 1950, CSA 22.2 950, EN60950
VDE (Pending)
Point-of-Load Alliance (POLA)
Compatible
NOMINAL SIZE =
1.37 in x 1.12 in
(34,8 mm x 28,5 mm)
Standard Application
Auto-T
rack
Sequencing
Pin Configuration
Pin
Function
1
GND
2Vin
3
GND
4
Inhibit *
5Vo Adjust
6Vo Sense
7
GND
8Vout
9Vout
10
GND
11
Track
12
Margin Down *
13
Margin Up *
* Denotes negative logic:
Open
= Normal operation
Ground = Function active
Rset = Required to set the output voltage to a value
higher than 0.8 V. (see spec. table for values).
Cin = Required 1,500 F capacitor.
Cout = Optional 330 F capacitor.
PTH05030W
(Top View)
Margin Up
Margin Down
V
IN
L
O
A
D
C
IN
1,500 F
(Required)
+
C
OUT
330 F
(Optional)
+
Inhibit
GND
V
OUT
V
o Sense
Track
1
3
13
12
11
9
7
6
5
4
2
10
8
R
SET
0.5 %, 0.1 W
(Required)
Description
The PTH05030 is a series of high-
current non-isolated power modules
from Texas Instruments. This product is
characterized by high efficiencies, and
up to 30 A of output current, while oc-
cupying a mere 1.64 in of PCB area. In
terms of cost, size, and performance, the
series provides OEM’s with a flexible
module that meets the requirements of
the most complex and demanding mixed-
signal applications. These include the
most densly populated, multi-processor
systems that incorporate high-speed
DSP’s, microprocessors, and ASICs.
The series uses double-sided surface
mount construction and provides high-
performance step-down power conversion
from a 5-V input bus voltage. The out-
put voltage of the PTH05030W can be
set to any value over the range 0.8 V to
3.6 V, using a single resistor.
This series includes Auto-Track.
Auto-Track simplifies power-up and
power-down supply voltage sequencing
in a system by enabling modules to track
each other, or any other external voltage.
Each model also includes an on/off
inhibit, output voltage adjust (trim), and
margin up/down controls. An output
voltage sense ensures tight load regulation,
and an output over-current and thermal
shutdown feature provide for protection
against external load faults.
Package options inlude both through-
hole and surface mount configurations.
PTH05030W —5-V Input