at1796 Aimtron Technology, at1796 Datasheet - Page 4

• Manufacturer Part Number: at1796
• Description: 150khz, 3a Step-down Switching Regulator
• Manufacturer: Aimtron Technology

Electrical characteristics
Quiescent Current
Stand-by
quiescent Current
SHDN pin logic input
voltage threshold
SHDN pin logic input
current
<AT1796-3.3V>
Output voltage
Efficiency
<AT1796-5.0V>
Output voltage
Efficiency
<AT1796-ADJ>
FB voltage
Efficiency
<Device parameters>
Saturation voltage
Oscillator frequency
Maximum duty cycle
Minimum duty cycle
Current limit
Output leakage current
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
2/15/2006 REV : 1.1
Parameter
Symbol
Fax: [phone]
D
V
V
D
V
F
I
V
V
V
I
I
I
I
I
SQC
I
MAX
OSC
OUT
OUT
OC
η
η
η
SAT
MIN
CL
L1
L2
IL
IH
FB
IH
IL
SHDN = 5V
Active mode
Standby mode
Active mode
Standby mode
4.75≦Vcc≦28V
0.2A≦I
Vin = 12V , I
4.75≦Vcc≦28V
0.2A≦I
Vin = 12V , I
4.75≦Vcc≦28V
0.2A≦I
Vin = 12V , I
V
I
FB = 0V
FB = 3.3V or 5V
Peak current
No diode . capacitor , inductor
FB = 12V ,
Switching OFF , OUT = 0V
Vcc =28V
150kHz, 3A Step-Down Switching Regulator
LOAD
OUT
= 3V
= 3A
LOAD
LOAD
LOAD
Condition
4
≦3A
≦3A
≦3A
LOAD
LOAD
LOAD
Preliminary Product Information
= 3A
= 3A
= 3A ,
(VCC = 12V , T a =+25℃ , unless otherwise noted. )
WWW:
Email:
Min. Typ. Max.
3.168
1.193
127
2.0
4.8
3.6
73
http://www.aimtron.com.tw
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[e-mail]
Values
1.230
0.02
1.15
150
100
3.3
5.0
4.5
80
80
73
50
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5
5
0
2
AT1796
3.432
1.267
200
173
0.6
5.2
1.5
5.0
10
15
30
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5
Unit
kHz
mA
mA
µA
µA
µA
µA
%
%
%
%
%
V
V
V
V
V
V
A