KA317M [FAIRCHILD]
3-Terminal 0.5A Positive Adjustable Regulator; 三端0.5A正，可调式稳压器
| 型号： | KA317M |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 3-Terminal 0.5A Positive Adjustable Regulator |
| 文件： | 总8页 (文件大小：225K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA317M
3-Terminal 0.5A Positive Adjustable Regulator
Features
Description
• Output Current in Excess of 0.5A
The KA317M is a 3-Terminal adjustable positive voltage
regulator capable of supplying in excess of 500mA over an
output voltage range of 1.2V to 37V. This voltage regulator
is exceptionally easy to use and requires only two external
resistors to set the output voltage.
• Output Adjustable Between 1.2V and 37V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe Area Compensation
• Floating Operation for High Voltage Applications
D-PAK
2
1
3
1. Adj 2. Output 3. Input
TO-220
1
2
3
Internal Block Diagram
Input
3
+
-
Protection
Circuitry
Voltage
Reference
Rlimit
2
Output
1
Vadj
Rev. 1.0.2
©2002 Fairchild Semiconductor Corporation
KA317M
Absolute Maximum Ratings
Parameter
Symbol
V - V
Value
40
Unit
V
Input Output Voltage Differential
Power Dissipation
I
O
P
Internally limited
W
D
Thermal Resistance Junction-Air
D-PAK (Note1,2)
R
θJA
100
°C/W
Operating Junction Temperature Range
Storage Temperature Range
T
0 ~ +125
°C
°C
j
T
-65 ~+125
STG
Electrical Characteristics
(V -V =5V, I = 0.1A, 0°C ≤ T ≤ + 125°C, P
= 7.5W, unless otherwise specified)
I
O
O
J
DMAX
Parameter
Symbol
Conditions
T = +25°C, 3V ≤ V −V ≤ 40V
Min.
Typ. Max.
Unit
-
-
0.01
0.02
0.04
0.07
A
I
O
Line Regulation (Note3)
Load Regulation (Note3)
Adjustment Pin Current
Rline
%/ V
3V ≤ V −V ≤ 40V
I
O
T =+ 25°C, 10mA ≤ I ≤ 0.5A
A
O
V
V
≤ 5V
≥ 5V
-
-
5
25
mV
%/ V
O
O
O
0.1
0.5
Rload
10mA ≤ I ≤ 0.5A
O
V
V
≤ 5V
≥ 5V
20
70
mV
O
O
0.3
1.5
%/ V
O
I
-
-
-
50
100
uA
ADJ
Adjustment Pin Current
Change
3V ≤ V - V ≤ 40V
I O
∆I
0.2
5
uA
ADJ
10mA ≤ I ≤ 0.5A, P < P
DMAX
O
D
3V < V - V < 40V
I
O
Reference Voltage
V
1.20
1.25
0.7
1.30
V
REF
10mA ≤ I ≤ 0.5A, P < P
DMAX
O
D
Temperature Stability
ST
-
-
-
-
10
-
%/ V
T
O
Minimum Load Current to
Maintain Regulation
I
V - V = 40V
3.5
mA
A
L(MIN)
I
O
V - V ≤15V, P < P
DMAX
0.5
0.15
-
0.9
I
O
D
Maximum Output Current
I
O(MAX)
V - V = 40V
I
O
0.25
0.003
-
P
< P
, T =+ 25°C
DMAX
D
A
RMS Noise, % of V
Ripple Rejection
e
T = +25°C, 10Hz < f < 10KHz
A
-
%/ V
dB
OUT
N
O
V
= 10V, f = 120Hz
O
RR
ST
without C
65
80
-
ADJ
= 10uF (Note4)
C
ADJ
66
-
Long-Term Stability
T =+ 125°C, 1000Hours
J
0.3
1
%/1000Hrs
Note :
1. Thermal resistance test board
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow.
3. Load and Line regulation are specified at constant junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty cycle is used.
4. C , when used, is connected between the adjustment pin and ground.
ADJ
2
KA317M
Typical Performance Characteristics
Figure 2. Peak Output Current vs. Input-Output
Figure 1. Minimum Load Current
Differential Voltage
Figure 4. Ripple Rejection vs. Frequency
Figure 3. Adjustment Pin Current vs. Temperature
Figure 5. Load Regulation vs. Temperature
Figure 6. Line Regulation vs. Temperature
3
KA317M
Typical Performance Characteristics (Continued)
Figure 7. Outputvoltage vs. Temperature
Figure 8. Thermal Shutdown
4
KA317M
Typical Application
Input
Output
Figure 1. 15V Electronic Shutdown Regulator
D1 protects the device during an input short circuit.
Input
Output
Figure 2. Slow Turn-On Regulator
Input
Output
Figure 3. Current Regulator
5
KA317M
Mechanical Dimensions
Package
Dimensions in millimeters
TO-220
4.50 ±0.20
9.90 ±0.20
(8.70)
+0.10
–0.05
1.30
ø3.60 ±0.10
1.27 ±0.10
1.52 ±0.10
0.80 ±0.10
+0.10
–0.05
0.50
2.40 ±0.20
2.54TYP
2.54TYP
[2.54 ±0.20]
[2.54 ±0.20]
10.00 ±0.20
6
KA317M
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
D-PAK
6.60 ±0.20
5.34 ±0.30
2.30 ±0.10
0.50 ±0.10
(0.50)
(4.34)
(0.50)
MAX0.96
0.76 ±0.10
0.50 ±0.10
1.02 ±0.20
2.30 ±0.20
2.30TYP
2.30TYP
[2.30±0.20]
[2.30±0.20]
6.60 ±0.20
(5.34)
(5.04)
(1.50)
(2XR0.25)
0.76 ±0.10
7
KA317M
Ordering Information
Product Number
KA317M
Package
TO-220
D-PAK
Operating Temperature
0 ~ 125 °C
KA317MR
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
3/14/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
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