Datasheet
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Standard Application
Features
• Up to 6-A Output Current
• 3.3 V Input Voltage
• Wide-Output Voltage Adjust
(0.9 V to 2.5 V)
• Efficiencies up to 95 %
• 115 W/in³ Power Density
• On/Off Inhibit
• Under-Voltage Lockout
PTH03000W —3.3-V Input
6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
R
set
= Required to set the output voltage to a value
higher than 0.9 V (see spec. table for values)
C
in
= Required 100 µF capacitor
C
out
= Optional 100 µF capacitor
• Output Current Limit
• Over-Temperature Protection
• Operating Temp: –40 to +85 °C
• Surface Mount Package
• Safety Agency Approvals (Pending):
UL 1950, CSA 22.2 950, EN60950
& VDE
V
IN
Inhibit
GND
GND
V
OUT
R
SET
1 %, 0.1 W
(Required)
C
OUT
100 µF
Electrolytic
(Optional)
C
IN
100 µF
(Required)
PTH03000W
(Top View)
1
4
2
3
5
Description
The PTH03000 series of non-isolated
power modules are small in size and high
on performance. Using double-sided sur-
face mount construction and synchronous
rectification technology, these regulators
deliver up to 6 A of output current while
occupying a PCB area of about half the
size of a standard postage stamp. They
are an ideal choice for applications where
space, performance and cost are impor-
tant design constraints.
The series operates from an input
voltage of 3.3 V to provide step-down
power conversion to any output voltage
over the range, 0.9 V to 2.5 V. The out-
put voltage of the PTH03000W is set
within this range using a single resistor.
Operating features include an on/off
inhibit, output voltage adjust (trim), an
output current limit, and over-temperature
protection.
Target applications include telecom,
industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, or ASIC.
Package options include both through-
hole and surface mount configurations.
Pin Configuration
Pin Function
1 GND
2V
in
3 Inhibit *
4V
o
Adjust
5V
out
* Denotes negative logic:
Open = Output On
Ground = Output Off
NOMINAL SIZE = 0.75 in x 0.5 in
(19,05 mm x 12,7 mm)
SLTS200C – MAY 2003 – REVISED DECEMBER 2003