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Datasheet: AV1117-XX (Avic Technology)

Outline Dimension

 

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Avic Technology

@vic
AV1117
Copyright Avic Electronics Corp.
1
Website:
http://www.avictek.com
Features Outline Dimension
Low dropout voltage
Load regulation: 0.05% typical
Trimmed current limit
On-chip thermal limiting
Three-terminal adjustable or
fixed 2.5V, 2.85V, 3.3V, 5V
Surface mount package SOT-223
Applications
Active SCSI terminators
High efficiency linear regulators
Portable Top/Notebook computers
Post regulators for switching supplies
Battery chargers
5V to 3.3V linear regulators
Motherboard clock supplies
Description
The AV1117 and AV1117-2.5, -2.85, -3.3 and -5 are low dropout three-terminal regulators
with 1A output current capability. These devices have been optimized for low voltage
where transient response and minimum input voltage are critical. The 2.85V version is
designed specifically to be used in Active Terminators for SCSI bus.

Current limit is trimmed to ensure specified output current and controlled short-circuit current.
On-chip thermal limiting provides protection against any combination of overload and
ambient temperatures that would create excessive junction temperatures.

Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent
current, the quiescent current of the AV1117 flows into the load, increasing efficiency.
The AV1117 series regulators are offered in three-pin surface mount package SOT-223.

@vic
AV1117
Copyright Avic Electronics Corp.
2
Website:
http://www.avictek.com
Ordering Information
Device
Marking
Package
AV1117 AV1117 SOT-223
AV1117-xx AV1117-xx SOT-223
* XX(Output Voltage)= 2.5V, 2.85V, 3.0V, 5.0V

Typical Applications
Absolute Maximum Rating
(Ta=25)
Characteristic
Symbol
Ratings
Unit
DC Input Voltage
V
IN
7.5
V
Lead Temperature (Soldering, 10sec)
T
sol
260
Storage Temperature Range
T
stg
-65
+150
Operating Junction Temperature Range
T
opr
0 ~ 125
AV1117
AV1117-2.85

@vic
AV1117
Copyright Avic Electronics Corp.
3
Website:
http://www.avictek.com
Electrical Characteristics
Operating Conditions: VIN 7V , TJ=25 unless otherwise specified
The
denotes specifications which apply over the specified operating temperature range.
Note :
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line
2. Line and load regulation are guaranteed up to the maximum power dissipation. (18W).
Power dissipation is determined by input/output differential and the output current.
Guaranteed maximum output power will not be available over the full input/output voltage range.
3. AV1117 only.
Min
Typ
Max
V
REF
1.5V (V
IN
-V
OUT
) 5.75V
10mA I
OUT
1A
1.225
(-2%)
1.25
1.275
(2%)
V
10mA I
OUT
1A
AV1117-2.5, 4V V
IN
7V
2.450
2.5
2.550
AV1117-2.85, 4.35V V
IN
7V
2.793
2.85
2.907
AV1117-3.3, 4.8V V
IN
7V
3.234
3.3
3.366
AV1117-5, 6.5V V
IN
7V
4.900
5.0
5.100
V
O
(V
OUT
+1.5V) V
IN
7V
I
OUT
=10mA
0.005
0.2
%
V
O
(V
IN
- V
OUT
)=2V
10mA I
OUT
1A
-
0.05
0.5
%
V
D
V
REF
=1%, I
OUT
=1A
-
1.1
1.2
V
(V
IN
- V
OUT
)=2V
1.1
1.5
A
I
Adj
35
120
A
I
Adj
1.5V (V
IN
-V
OUT
) 5.75V
10mA I
OUT
1A
0.2
5
A
I
O(MIN)
1.5V (V
IN
-V
OUT
) 5.75V
10
mA
I
D
V
IN
= V
OUT
+ 1.25V
4
13
mA
SVR
f=120Hz, C
OUT
=22F Tantalum
(V
IN
-V
OUT
)=3V, I
OUT
=1A
60
72
dB
TA=25
, 30ms pulse
0.004
0.02
%/W
V
O
0.5
%
V
O
TA=125
, 1000hrs
0.03
1.0
%
E
N
TA=25
, 10Hz f 10kHz
0.003
%
15
/W
Thermal Resistance,
Junction to Case
Reference voltage
3
V
O
Output Voltage
Adjust Pin Current Change
3
Quiescent Current
Supply Voltage Rejection
Thermal Regulation
Temperature Stability
Conditions
V
Symbol
Ratings
Units
Long-Term Stability
RMS Output Noise (% of V
OUT
)
Parameter
Line Regulation
1,2
Load Regulation
1,2
Minimum Load Current
Current Limit
Adjust Pin Current
3
Dropout Voltage

@vic
AV1117
Copyright Avic Electronics Corp.
4
Website:
http://www.avictek.com
Electrical Characteristics Curves

@vic
AV1117
Copyright Avic Electronics Corp.
5
Website:
http://www.avictek.com
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