PTH03010W —3.3-V Input
15-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
SLTS203C – MAY 2003 – REVISED DECEMBER 2003
Features
• Up to 15-A Output Current
• 3.3-V Input Voltage
• Auto-Track™ Sequencing
• Margin Up/Down Controls
• Under-Voltage Lockout
• Operating Temp: –40 to +85 °C
• DSP Compatible Output Voltages
• Safety Agency Approvals:
UL 1950, CSA 22.2 950, EN60950
VDE (Pending)
• Wide-Output Voltage Adjust
(0.8 V to 2.5 V)
• Efficiencies up to 95 %
• 125 W/in³ Power Density
• On/Off Inhibit
• Output Voltage Sense
• Pre-Bias Startup
NOMINAL SIZE =
1.37 in x 0.62 in
(34,8 mm x 15,75 mm)
• Point-of-load Alliance (POLA)
Compatible
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
Description
Pin Configuration
Auto-Track simplifies the task of supply
voltage sequencing in a power system by
enabling modules to track each other, or
any external voltage, during power up
and power down.
Other operating features include an
on/off inhibit, output voltage adjust (trim),
and margin up/down controls. To ensure
tight load regulation, an output voltage
sense is also provided. A non-latching
over-current trip serves as load fault
protection.
The PTH03010 series of non-isolated
power modules are small in size but big on
performance and flexibility. Their high
output current, compact footprint, and
industry-leading features offers system
designers a versatile module for powering
complex multi-processor digital systems.
The series employs double-sided surface
mount construction and provides high-
performance step-down power conversion
for up to 15 A of output current from a
3.3-V input bus voltage. The output volt-
age of the PTH03010W can be set to any
value over the range, 0.8 V to 2.5 V, using
a single resistor.
Pin Function
1
2
3
4
5
6
7
8
9
GND
Vin
Inhibit *
Vo Adjust
Vo Sense
Vout
GND
Track
Margin Down *
10 Margin Up *
*
Denotes negative logic:
Open
= Normal operation
Ground = Function active
Target applications include complex
multi-voltage, multi-processor systems
that incorporate the industry’s high-speed
DSPs, micro-processors and bus drivers.
This series includes Auto-Track™.
Standard Application
Track
R
=
Required to set the output voltage to a value
higher than 0.8 V. (See spec. table for values)
set
Margin Down
Margin Up
C
C
= Required 470 µF capacitor
= Optional 330 µF Capacitor
in
out
10
9
8
1
7
6
PTH03010
(Top View)
VIN
VOUT
2
3
4
5
Vo Sense
Inhibit
L
O
A
D
RSET (Required)
0.1 W, 1 %
+
+
COUT
330 µF
(Optional)
CIN
470 µF
(Required)
GND
GND
For technical support and more information, visit http://power.ti.com