ATH15T033 Datasheet, PDF (1/14 Pages) Astec America, Inc – 15-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module

ATH15T033 Series —3.3-V Input
15-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
REVISION 00 (3DEC2003)
NOMINAL SIZE = 1.37 in x 0.62 in
(34,8 mm x 15,75 mm)
Features
• Up to 15-A Output Current
• 3.3-V Input Voltage
• 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
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
• Auto-Track™ Sequencing
• Margin Up/Down Controls
• Under-Voltage Lockout
• Operating Temp: –40 to +85 °C
• DSP Compatible Output Voltages
• IPC Lead Free 2
• Safety Agency Approvals (Pending)
UL 1950, CSA 22.2 950, &
EN60950
• Point-of-load Alliance (POLA)
Compatible
Description
The ATH15T033 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 ATH15T033 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™.
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.
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 Vo 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
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Standard Application
Track
Margin Down
Margin Up
V_IN
Inhibit
C_IN
470 µF
(Required)
GND
10 9 8
1
7
ATPHT1H50T3003103W-9S
(Top View)
2
6
345
R_SET
0.5 %, 0.1 W
(Required)
C_OUT
330 µF
(Optional)
V_OUT
V_o Sense
L
O
A
D
GND
Rset = Resistor to set the desired output
voltage (see spec. table for values)
Cin = Required electrolytic 470 µF
Cout = Recommended 330 µF electrolytic
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662