ADDtek AMC317T 1.2a / 3-terminal adjustable regulator Datasheet

AMC317
1.2A / 3-TERMINAL ADJUSTABLE
REGULATOR
www.addmtek.com
DESCRIPTION
FEATURES
The AMC317 series is a 3-terminal adjustable regulator
featuring output current of typical 1.2A over a wide output
range from 1.2V to 20V. Only two external resistors are
required to set the output voltage. This feature provides
better line and load regulation than fixed regulators.
„
Also, the AMC317 series offers full overload
protection, current limit, and thermal protection features. In
most applications, no capacitor is required for the AMC317.
However, if the device is located far from the input filter
capacitor, then an input bypass will be required. Also, in
order to improve the transient response, an output capacitor
is recommended.
„
„
„
„
„
„
„
Output current capability of 1.2A
Wide output voltage range – adjustable from
1.2V to 20V
Ripple rejection typically 80 dB
Typically 0.1% load regulation
Built-in over current, over temperature and
overload protection.
Internal thermal overload protection
Available in 3-Lead TO-220, and surface
mount 3-Lead TO-263.
Identical pin assignment to earlier LM317
series.
APPLICATIONS
„
„
„
„
„
„
„
PACKAGE PIN OUT
Voltage Regulators
Power Supplies
Current Regulators
Switching Regulators
Current Limiter
Constant Current Battery Charger
Current Limited Charger
VIN
V IN
VOUT
V OUT
AD J
ADJ
3-P in P lastic T O -263
3-Pin Plastic TO-220
S u rface M o u n t
(Top View)
(To p View )
V IN
3. VIN
V OUT
2. V out
ADJ
1. ADJ/GND
3-Pin Plastic TO-252
Surface Mount
(Top View)
3 -P in P la s tic S O T -2 2 3
S u rfa c e M o u n t
(To p V ie w )
ORDER INFORMATION
TA (°C)
T
Plastic TO-220
3-pin
0 to 70 AMC317T
ST
Plastic TO-263
3-pin
AMC317ST
SJ
Plastic TO-252
3-pin
AMC317SJ
SK
Plastic SOT-223
3-pin
AMC317SK
0 to 70 AMC317TF (Lead Free) AMC317STF (Lead Free) AMC317SJF (Lead Free) AMC317SKF (Lead Free)
Note: 1.All surface-mount packages are available in Tape & Reel.
AMC317STT).
2.The letter “F” is marked for Lead Free process.
Copyright © 2006 ADDtek Corp.
Append the letter “T” to part number (i.e.
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AMC317
TYPICAL APPLICATION
VIN
VOUT
AMC317
R1
240Ω
ADJ
CIN
0.1µF
R2
5K
COUT
1µF
Note 1: CIN is required if the regulator is far from the filter capacitor.
Note 2: COUT is recommended to improve the transient response.
R2
Note 3: VOUT = 1.25V
( 1+
) + IADJ (R2)
R1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input-Output Differential Voltage VD ……………..…………………………………………………………..20V
Operating Junction temperature
Plastic (T, ST Package) …………………………………………………………………………………… 150°C
Storage Temperature Range ………………………………………………………………………. -65°C to 150°C
Lead temperature (Soldering, 10 seconds) ………………………………………………………………….. 300°C
Note 1:
Exceeding these ratings could cause damage to the device.
negative out of the specified terminal.
All voltages are with respect to Ground. Currents are positive into,
THERMAL DATA
T, ST PACKAGE:
Thermal Resistance-Junction to Tab, θJT
Thermal Resistance-Junction to Ambient, θJA
Junction Temperature Calculation: TJ = TA + (PD × θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
3.0°C /W
45°C /W
Maximum Power Calculation:
TJ(MAX) – TA(MAX)
θJA
TJ(OC): Maximum recommended junction temperature
PD(MAX)=
TA(OC): Ambient temperature of the application
θJA(OC/W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating materials.
The maximum power dissipation for a single-output regulator is :
PD(MAX) = [(VIN(MAX) - VOUT(NOM))] × IOUT(NOM) + VIN(MAX) × IQ
Where: VOUT(NOM) = the nominal output voltage
IOUT(NOM) = the nominal output current, and
IQ = the quiescent current the regulator consumes at IOUT(MAX)
VIN(MAX) = the maximum input voltage
Then θJA = (150 OC – TA)/PD
Copyright © 2006 ADDtek Corp.
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AMC317
RECOMMENDED OPERATING CONDITIONS
Recommended Operating
Parameter
Symbol
Min.
Typ.
Max.
Input-Output differential Voltage
VD
3
20
Load Current (with adequate heatsinking)
IO
10
1200
Input Capacitor (VIN to GND)
0.1
Output Capacitor with ESR of 10Ω max., (VOUT to GND)
1.0
Units
V
mA
µF
µF
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications in bold type apply over the operating ambient temperature of 0°C to
+70°C, VIN – VOUT = 5V, IOUT = 10mA,CIN = 0.1µF, COUT= 1.0µF, and are for DC characteristics only. (Low duty
cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
Parameter
Symbol
Reference Voltage
VREF
Line Regulation (see note 2)
VOI
Load regulation
VOL
Minimum Load Current
Adjustment Pin Current
IOUT(MIN)
IADJ
Adjustment Pin Current Change
IADJ
Current Limit
ICL
Ripple Rejection Ratio (Note 3)
RR
Output Noise Voltage (Note 3)
Long Term Stability (Note 3)
Temperature Stability (Note 3)
VO RMS
Note 2:
Note 3:
VO(Temp)
Test Conditions
3V ≤ VIN – VOUT ≤ 20V,
10mA ≤ IOUT ≤ 1.2A, P ≤ 15W
Min.
AMC317
Typ. Max.
1.20
3V ≤ VIN – VOUT ≤ 20V,TJ = 25°C
3V ≤ VIN – VOUT ≤ 20V
10mA ≤ IOUT ≤ 1.2A, TJ = 25°C
10mA ≤ IOUT ≤ 1.2A
VIN – VOUT ≤ 20V
1.25
1.30
0.01
0.02
0.1
0.3
3.5
50
0.04
0.07
0.5
1.5
10
100
3V ≤ VIN – VOUT ≤ 20V
0.2
10mA ≤ IOUT ≤ 1.2A
(VIN – VOUT) ≤ 10V
1.2
2.2
(VIN – VOUT) ≤ 15V
0.8
1.1
(VIN – VOUT) = 20V
0.15 0.4
VOUT = 10V, f = 120Hz
65
VOUT = 10V, f = 120Hz, 10µF
66
80
capacitor between ADJ and GND
0.003
10Hz ≤ f ≤ 10KHz, TJ = 25°C
TJ = 125 OC, and VIN – VOUT = 20V
0.3
1
TMIN ≤ TJ ≤ TMAX
Units
V
%/V
%
mA
µA
µA
5.0
3.4
A
dB
%
%/1000hr
%
1
Line regulation is defined as the percentage change in output voltage every 1V change at the input
These parameters, although guaranteed, are not tested in production prior to shipment
Copyright © 2006 ADDtek Corp.
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AMC317
TYPICAL APPLICATIONS
AMC317
AMC317
VIN
VOUT
VIN
ADJ
VOUT
ADJ
R1
240
C1
0.1µF
C2
0.1µF
C2
0.1µF
R2
720
C3
1µF
R2
5K
C1
10µF
TTL
1K
D1
1N4002
R1
240
5V Logic Regulator with Shutdown
Adjustable Regulator with Improved Ripple Rejection
(Minimum output ≈ 1.2V)
AMC317
AMC317
VOUT
ADJ
VIN
ADJ
VIN
VOUT
R1
1.2
2W
C1
0.1µF
R1
1.2K
R2
20K
LOAD
1.2V –20V Regulator with Minimum Current (≈ 4 mA)
1A Current Regulator
AMC317
AMC317
VIN
ADJ
VIN
VOUT
Rs
0.2
ADJ
VOUT
9V – 40V
R1
240
R1
240
C1
1000µF
R2
2.4K
R2
1.1K
R3
1
12V Battery Charger
Current Limited 6V Charger
(Peak Current = 0.6A with 1Ω resistor)
Copyright © 2006 ADDtek Corp.
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AMC317
PACKAGE
3-Pin Plastic TO-220
E
INCHES
A
P
F
MIN
TYP
MAX
MIN
TYP
MAX
0.140
-
0.190
3.56
-
4.83
b1 0.045
-
0.070
1.14
-
1.78
b
0.020
-
0.045
0.51
-
1.14
c
0.012
-
0.045
0.30
-
1.14
D 0.560
-
0.650 14.22
-
16.51
E
0.380
-
0.420
9.65
-
10.67
e
0.090
-
0.110
2.29
-
2.79
e1 0.190
-
0.210
4.83
-
5.33
SEATING PLAN
Q
A
H1
D
MILLIMETERS
L1
F
L
b1
b
c
J1
e
e1
0.055
0.51
-
1.40
H1 0.230
0.020
-
0.270
5.84
-
6.86
J1 0.080
-
0.115
2.03
-
2.92
L
0.500
-
0.580
12.7
-
14.73
P
0.139
-
0.161
3.53
-
4.09
Q 0.100
-
0.135
2.54
-
3.43
L1
-
0.250
-
-
6.35
-
3-Pin Surface Mount TO-263
INCHES
E
A
MIN
TYP
MAX
MIN
TYP
MAX
A
0.160
-
0.190
4.06
-
4.83
b
0.020
-
0.039
0.51
-
0.99
b2 0.045
-
0.055
1.14
-
1.40
c2
D
c
L
L3
L1
b
e
0.015 TYP.
-
0.055
1.14
-
1.40
D 0.340
-
0.380
8.64
-
9.65
E
-
0.405
9.65
-
10.29
L
b2
0.380
0.100 BSC
0.575
-
0.625 14.61
-
15.88
-
0.110
-
2.79
-
L3 0.050
5
2.54 BSC
L1 0.090
L2
Copyright © 2006 ADDtek Corp.
0.38 TYP.
c2 0.045
e
c
MILLIMETERS
2.29
-
0.115
-
-
2.92
-
0.070
1.27
-
1.78
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AMC317
3-Pin Surface Mount TO-252 (SJ)
INCHES
MIN
TYP
MAX
MIN
TYP
MAX
0.086
-
0.094
2.18
-
2.39
A1 0.040
-
0.050
1.02
-
1.27
0.024
-
-
0.61
-
-
0.215
5.21
-
5.46
0.018
-
0.023
0.46
-
0.58
c1 0.018
-
0.023
0.46
-
0.58
D 0.210
-
0.220
5.33
-
5.59
E
-
0.265
6.35
-
6.73
A
E
b2
A
A1
c1
L2
b
SEATING PLAN
-
b2 0.205
D
L1
L
b
e
c
H
MILLIMETERS
c
e1
0.250
e
0.090 BSC
2.29 BSC
e1
0.180 BSC
4.58 BSC
H 0.370
-
0.410
9.40
-
10.41
L
0.020
-
-
0.51
-
-
L1 0.025
-
0.040
0.64
-
1.02
L2 0.060
-
0.080
1.52
-
2.03
3-Pin Surface Mount SOT-223 ( SK )
D
A
c
MILLIMETERS
B1
H
E
K
L
e
A1
e1
MIN
TYP
MAX
A
1.50
1.65
1.80
A1
0.02
0.05
0.08
B
0.60
0.70
0.80
B1
2.90
-
3.15
c
0.28
0.30
0.32
D
6.30
6.50
6.70
E
3.30
3.50
3.70
e
2.3 BSC
e1
4.6 BSC
H
6.70
7.00
7.30
L
0.91
1.00
1.10
K
1.50
1.75
2.00
α
0°
5°
10°
β
3°
B
Copyright © 2006 ADDtek Corp.
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AMC317
IMPORTANT NOTICE
ADDtek reserves the right to make changes to its products or to discontinue any integrated circuit product or service
without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing
orders, that the information being relied on is current.
A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe
property or environmental damage. ADDtek integrated circuit products are not designed, intended, authorized, or
warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of
ADDtek products in such applications is understood to be fully at the risk of the customer. In order to minimize risks
associated with the customer’s applications, the customer should provide adequate design and operating safeguards.
ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of
its products to the specifications applicable at the time of sale.
ADDtek Corp.
9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105
TEL: 2-25700299
FAX: 2-25700196
Copyright © 2006 ADDtek Corp.
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