ATH30T033 Datasheet, PDF (1/16 Pages) Astec America, Inc – 30-A, 3.3-V Input Non-Isolated Wide-Output Adjust Power Module

ATH30T033 Series —3.3-V Input
30-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
REVISION 00 (30APR2004)
NOMINAL SIZE = 1.37 in x 1.12 in
(34,8 mm x 28,5 mm)
Features
• Up to 30-A Output Current
• 3.3-V Input Voltage
• Wide-Output Voltage Adjust
(0.8 V to 2.5 V)
• 135 W/in³ Power Density
• Efficiencies up to 93 %
• On/Off Inhibit
• 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
• Over-Temperature Shutdown
• Safety Agency Approvals:
UL 1950, CSA 22.2 950, EN60950
VDE (Pending)
• Point-of-Load Alliance (POLA)
Compatible
Description
The ATH30T033 is a series of high-
current non-isolated power modules.
The product is characterized by high effi-
ciencies, and up to 30 A of output current,
while occupying a mere 1.64 in² of PCB
area. In terms of cost, size, and perfor-
mance, the series provides OEM’s with a
flexible module that meets the require-
ments of the most complex and demanding
mixed-signal applications. These include
the most densly populated, multi-proces-
sor systems that incorporate high-speed
DSP’s, microprocessors, and ASICs.
The series uses double-sided surface
mount construction and provides high-
performance step-down power conversion
from a 3.3-V input bus voltage. The out-
put voltage of the ATH30T033 can be
Standard Application
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 power-up and
power-down supply voltage sequencing
in a system by enabling modules to track
each other, or any other external voltage.
Each model also includes an on/off
inhibit, output voltage adjust (trim), and
margin up/down controls. An output
voltage sense ensures tight load regulation,
and an output over-current and thermal
shutdown feature provide for protection
against external load faults.
Package options inlude both through-
hole and surface mount configurations.
Pin Configuration
Pin Function
1 GND
2 Vin
3 GND
4 Inhibit *
5 Vo Adjust
6 Vo Sense
7 GND
8 Vout
9 Vout
10 GND
11 Track
12 Margin Down *
13 Margin Up *
* Denotes negative logic:
Open = Normal operation
Ground = Function active
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Track
Margin Down
Margin Up
V_IN
Inhibit
C_IN
1,500 µF
(Required)
GND
13 12 11
1
10
2
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9
8
3
7
456
R_SET
0.5 %, 0.1 W
(Required)
C_OUT
330 µF
(Optional)
Rset = Required to set the desired output voltage
higher than 0.8 V (see spec. table for values).
Cin = Required 1,500 µF capacitor.
Cout = Optional 330 µF capacitor.
V_OUT
V_o Sense
L
O
A
D
GND
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662