North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662
2
Electrical Specs
Special Features
75 Watts
APA18
· Point of load (POL) applications
· High Current slew rate at 1A/uS
· High efficiency - 91%@3.3V (typ)
· Open frame SIP
· -40°C to +85°C Ambient operating temperature
· Positive enable function
· Low output ripple and noise
· Adjustable output voltage through external
resistor programming
· Regulation to zero load
Environmental
Operating temperature
-40°C to +85°C (Ambient temperature)
Storage temperature: -55°C to +125°C
MTBF: >1million hours
Input
Input range
10.0 to 14.0V
Input Surge
15V
Efficiency
92%@3.3V (Typical)
Output
Line Regulation
<0.5%
Load Regulation
0.75Vo
7mV
0.75 < Vo < 3.3V
15mV
3.3V
Vo
25mV
Regulation
< 1.0%
Over operating
Temperature range
Load Current
18A max *
Noise / Ripple
0.75V - 5.0V
60mV
>5.0V
75mV
Current Slew Rate
up to 1A/uS
Transient Response
200mV typical deviation
for Load Change of 50% step
between 10% to 100% of load
200uS recovery
Remote Sense
0.25V
Turn On Input Voltage
8.7V - 9.7V (Typ)
UVLO Hysterisis
1V (Typ)
OCP/OTP
Hiccup - auto recovery
Isolation
Non-isolated module
Control
Enable
TTL compatible
(positive enable)
Note
Specifications subject to change without notice.
Safety
UL , cUL
60950 Recognized (Pending)
TUV
EN60950 Licensed (Pending)
Total Power:
75 Watts
Input Voltages:
10.0V to 14.0V
No. of Outputs:
Single
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
3
Ordering Information
www.astecpower.com Rev02 August 2004
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
Input
Output
Output Current
Efficiency
Model Number
Voltage
Voltage
10.0V - 14.0V
0.75 to 5.5V
18A*
92% (Typ)**
APA18T12-9
10.0V - 14.0V
0.75 to 5.5V
18A*
92% (Typ)**
APA18T12-9H
Note:
* 18A max output current with total output power limitted to 75W. Airflow required.
** Typical Efficiency for 3.3V output, full load, nominal input voltage, 300LFM, Ta = 25°C
Suffix "H" for Horizontal pins
3pcs 22uF ceramic capacitors is recommended to be placed from +Vin to GND, 10uF Tantalum capacitors, 1uF
ceramic is recommended to be placed from +Vo to GND
VERTICAL MOUNTING PINS DRAWING
HORIZONTAL MOUNTING PINS DRAWING
Pin Number Pin Connection
Function
P1
Vo
Output Voltage
P2
Vo
Output Voltage
P3
SENSE
Sense
P4
Vo
Output Voltage
P5
GND
Ground
P6
GND
Ground
P7
Vin
Input Voltage
P8
Vin
Input Voltage
P9
TRIM
Output Voltage
Adjustment
P10
ENABLE
Output Voltage Enable
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