ADT7221 ADTECH [ADTech], ADT7221 Datasheet - Page 4

• Manufacturer Part Number: ADT7221
• Description: power supply chip with 5V regulated output
• Manufacturer: ADTECH [ADTech]

Jun. 16. 2008 / Rev. 0.1
Operating Ratings
Electrical Characteristics (Ta=25℃, V
Absolute Maximum Ratings
Table B
Note1. derate 301℃/W above +70℃.
indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
*1 This spec. indicates that junction temperature of the device is under 125℃. In specific applications ,
*2 Maximum V
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
Supply current, operating
PWM controller
Efficiency
Oscillator frequency
Output voltage
LDO
Output voltage
Output drive current
Load regulation
Line regulation
Power supply voltage
Operating temperature
Junction temperature
Max. power dissipation (Ta=70℃)
Power supply voltage
Power dissipation (Ta=70℃) (Note1)
Storage temperature
Junction temperature
Thermal resistance
this is recommended under this power dissipation specification.
For using V
Drive current (㎃)
: Maximum drive current as maximum V
Parameter
V
IN
(V)
IN
IN
Parameter
Parameter
over 15V, refer to the
operating range can be extended. In this case, maximum drive current is limited.
*2
* This specifications are subject to be changed without notice
-
I
I
I
-
I
(measured at FB pin voltage)
I
I
V
O
O
O
O
O
O
IN
=0mA
=300mA
=300mA
=300mA
=300mA
=0 to 350mA
330
=7V to 15V, I
16
*1
Table B.
Condition
310
17
O
=350mA
IN
IN
Symbol
Symbol
4/6
operating voltage.
=12V, unless otherwise noted)
P
T
T
T
Θ
V
V
Dmax
P
T
Jmax
OPR
STG
IN
D
IN
JA
J
290
18
Min.
Min.
-20
-65
7.0
-
-
-
-
-
-
Min.
270
5.25
4.75
350
19
-
-
-
-
-
-
Typ.
500
300
150
301.2
Typ.
5.5
5.0
Typ.
12.0
10
77
20
3
-
-
-
250
-
-
-
-
20
http://www.ad-tech.co.kr
Max.
5.75
5.25
625
350
15
-
-
-
-
Max.
+150
+150
Max.
+125
230
265
15.0
+85
180
21
23
-
Unit
kHz
mA
mA
mA
mV
mV
%
V
V
ADT7221
℃/W
210
Unit
mW
Unit
mW
22
Note
℃
℃
℃
℃
V
V