ATH15T033 Series —3.3-V Input
15-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
REVISION 00 (3DEC2003)
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
NOMINAL SIZE =
1.37 in x 0.62 in
(34,8 mm x 15,75 mm)
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
1
2
3
4
5
6
7
8
9
10
Function
GND
V
in
Inhibit *
V
o
Adjust
V
o
Sense
V
out
GND
Track
Margin Down *
Margin Up *
* Denotes negative logic:
Open
= Normal operation
Ground = Function active
k™
-Trac g
Auto ncin
e
Sequ
Standard Application
Track
Margin Down
Margin Up
1
10
9
8
7
PTH03010W
ATH15T033-9S
V
IN
(Top View)
2
3
4
5
6
V
OUT
Inhibit
V
o
Sense
L
O
A
D
R
SET
0.5 %, 0.1 W
(Required)
GND
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
+
+
C
IN
470 µF
(Required)
C
OUT
330 µF
(Optional)
GND
R
set
= Resistor to set the desired output
voltage (see spec. table for values)
Cin = Required electrolytic 470 µF
Cout = Recommended 330 µF electrolytic
Asia (HK): 852-2437-9662
ASTEC [ Astec America, Inc ]
