AT1796
Preliminary Product Information
150kHz, 3A Step-Down Switching Regulator
Absolute maximum ratings
Parameter
Power supply voltage
SHDN pin input voltage
Power dissipation
Operating Junction Temperature
Storage temperature
Thermal Resistance from Junction to Ambient
Thermal Resistance from Junction to Case
Lead Temperagture(Soldering, 5sec.)
ESD Susceptibility *2
Symbol
VCC
V
SHDN
P
d
T
J
T
stg
θ
JA
θ
JC
HBM
MM
Limits
30
-0.3~+25
Internally Limited
-30~+125
-65~+150
19.4
7.7
260
2
200
unit
V
V
W
o
C
o
C
o
C/W
o
C/W
o
C
KV
V
1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect device reliability
.
2. Device are ESD sensitive . Handling precaution recommended. The Human Body model is a 100pF
capacitor discharged through a 1.5KΩ resistor into each pin.
3.
θ
JA
is measured with the component mounted on an evaluation PC board in free air that
required area of copper is 2.5in2 (1 oz.)or larger.
the
Recommended operating conditions (
TA = 25
o
C
)
Parameter
Power supply voltage
SHDN pin input voltage
Symbol
VCC
V
SHDN
Limits
4.5~28
0~+20
unit
V
V
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/15/2006 REV : 1.1
Email:
service@aimtron.com.tw
3
AIMTRON [ AIMTRON TECHNOLOGY ]
