PTH03060W Datasheet, PDF (1/18 Pages) Texas Instruments – 10-A, 3.3-V Input Non-Isolated Step-Down Switching Power Module

PTH03060W —3.3 V Input
10-A, 3.3-V Input Non-Isolated
Step-Down Switching Power Module
SLTS215B – MAY 2003 – REVISED DECEMBER 2003
NOMINAL SIZE =
1 in x 0.62 in
(25,4 mm x 15,75 mm)
Features
• Up to 10-A Output Current
• 3.3-V Input Voltage
• Wide-Output Voltage Adjust
(0.8 V to 2.5 V)
• Efficiencies up to 96 %
• 114 W/in³ Power Density
• On/Off Inhibit
• Output Voltage Sense
• Pre-Bias Startup
• Margin Up/Down Controls
• Under-Voltage Lockout
• Auto-Track™ Sequencing
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
• Operating Temp: –40 to +85 °C
• DSP Compatible Output Voltages
• Safety Agency Approvals:
UL 1950, CSA 22.2 950, EN60950
VDE (Pending)
• Point-of-Load Alliance (POLA)
Compatible
Description
The PTH03060W non-isolated power
module is small in size but big on per-
formance and flexibility. Its high output
current, compact footprint, and industry-
leading features offers system designers
a versatile module for powering complex
multi-processor digital systems.
This product employs double-sided
surface mount construction and provides
high-performance step-down power
conversion for up to 10 A of output cur-
rent from a 3.3-V input bus voltage.
The output voltage is adjustable and can
be set to any value over the range, 0.8 V to
2.5 V, using a single resistor.
This series includes Auto-Track™
Sequencing. 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, margin up/down controls,
and the ability to start up into an existing
output voltage or prebias. To ensure tight
load regulation, an output voltage sense
is also provided. A non-latching over-
current trip serves as load fault protection.
Target applications include complex
multi-voltage, multi-processor systems
that incorporate the industry’s high-speed
DSPs, micro-processors and bus drivers.
Pin Configuration
Pin Function
1 GND
2 Vin
3 Inhibit *
4 V_o Adjust
5 Vo Sense
6 Vout
7 GND
8 Track
9 Margin Down *
10 Margin Up *
* Denotes negative logic:
Open = Normal operation
Ground = Function active
ASuteoq-uTreanccki™ng
Standard Application
Track
Margin Down
Margin Up
V_IN
Inhibit
GND
10 9 8
1
7
PTH03060W
(Top View)
2
6
34 5
V_o Sense
C_IN
330 µF
(Required)
R_SET
1 %, 0.1 W
(Required)
Rset = Required to set the output voltage to a value
higher than 0.8 V. (See spec. table for values)
Cin = Required 330 µF capacitor
Cout = Optional 330 µF capacitor
V_OUT
L
C_OUT
O
330 µF
A
(Optional) ^D
GND
For technical support and further information visit http://power.ti.com