FAN1616ADX [FAIRCHILD]
0.5A Adjustable/Fixed Low Dropout Linear Regulator; 0.5A可调式/固定式低压降线性稳压器
| 型号： | FAN1616ADX |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 0.5A Adjustable/Fixed Low Dropout Linear Regulator |
| 文件： | 总8页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
FAN1616A
0.5A Adjustable/Fixed Low Dropout Linear Regulator
Features
Description
• Low dropout voltage
• Load regulation: 0.05% typical
• Current limit
The FAN1616A, FAN1616A-1.8, -2.5, -3.3 and -5 are low
dropout three-terminal regulators with 0.5A output current
capability. These devices have been optimized for applica-
tions where transient response and minimum dropout voltage
are critical. The 5V version is designed also to be used in
USB Hub and Motherboard applications.
• On-chip thermal limiting
• Standard SOT-223 and TO-252 packages
• Three-terminal adjustable or fixed 1.8V, 2.5V, 3.3V or 5V
• Specified from -40°C to +125°C
On-chip thermal limiting provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperatures.
Applications
• USB Controlled Power Supply
• High efficiency linear regulators for Mixed Voltage
Logic, ASIC, FPGA based systems
• Post regulators for switching supplies
• Battery chargers
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the bias current of the
FAN1616A flows into the load, increasing efficiency.
• 12V to 5V, 3.3V, 2.5V, 1.8V, or adj linear regulators
• Motherboard clock supplies
• SDRAM Module supplies
The FAN1616A series regulators are available in the
industry-standard SOT-223 and TO-252 power packages.
Typical Applications
FAN1616A
VIN = 12V
VIN
VOUT
9V at 0.5A
+
+
10µF
22µF
R1
124Ω
ADJ
R2
768Ω
VOUT = VREF(1+R2/R1) + IAdj • R2
FAN1616A-3.3
VIN = 9V
VIN
VOUT
3.3V at 0.5A
+
+
10µF
22µF
GND
REV. 1.0.5 3/1/02
PRODUCT SPECIFICATION
FAN1616A
Pin Assignments
FAN1616AS (Variable)
FAN1616AS-X (Fixed)
FAN1616AD (Variable)
FAN1616AD-X (Fixed)
Front View
Front View
3
2
IN
Tab is
OUT
OUT
Tab is OUT
1
ADJ/GND
3
1
2
4-Lead Plastic SOT-223
JC = 15°C/W*
Θ
IN
ADJ/
GND
3-Lead Plastic TO-252
JC = 3°C/W*
Θ
*With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, ΘJA can vary from
30°C/W to >50°C/W. Other mounting techniques may provide better power dissipation than 30°C/W.
Absolute Maximum Ratings
Parameter
Min.
Max.
18
Unit
VIN
V
(VIN–VOUT) * IOUT
See Figure 1
125
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
-40
-65
°C
°C
°C
150
300
0.6
0.5
0.4
0.3
0.2
0.1
0
0
2
4
6
8
10
12
VIN – VOUT (V)
Figure 1. Absolute Maximum Safe Operating Area
2
REV. 1.0.5 3/1/02
FAN1616A
PRODUCTSPECIFICATION
Electrical Characteristics
Operating Conditions: VIN ≤ 12V, TJ = 25°C unless otherwise specified.
The • denotes specifications which apply over the specified operating temperature range.
Parameter
Conditions
Min.
Typ.
Max. Units
Reference Voltage3
1.5V ≤ (VIN - VOUT) ≤ 5.75V,
10mA ≤ IOUT ≤ 0.5A
•
1.225
(-2%)
1.250
1.275
(+2%)
V
Output Voltage4
10mA ≤ IOUT ≤ 0.5A
FAN1616A-1.8, 3.3V ≤ VIN ≤ 12V
FAN1616A-2.5, 4.0V ≤ VIN ≤ 12V
FAN1616A-3.3, 4.5V ≤ VIN ≤ 12V
FAN1616A-5, 6.2V ≤ VIN ≤ 12V
•
•
•
•
1.764
2.450
3.234
4.900
1.800
2.500
3.300
5.000
1.836
2.550
3.366
5.100
V
V
V
V
Line Regulation1,2
Load Regulation1,2,3
Dropout Voltage
(VOUT + 1.5V) ≤ VIN ≤ 12V, IOUT = 10mA
(VIN – VOUT) = 2V, 10mA ≤ IOUT ≤ 0.5A
∆VREF = 1%, IOUT = 0.5A
•
•
•
•
•
0.005
0.05
1.000
35
0.2
0.5
%
%
1.200
120
5
V
Adjust Pin Current3
µA
µA
Adjust Pin Current Change3, 4 1.5V ≤ (VIN – VOUT) ≤ 12V,
0.2
10mA ≤ IOUT ≤ 0.5A
Minimum Load Current
Quiescent Current
Ripple Rejection
1.5V ≤ (VIN – VOUT) ≤ 12V
•
•
10
60
mA
mA
dB
VIN = VOUT + 1.25V
4
13
f = 120Hz, COUT = 22µF Tantalum,
(VIN – VOUT) = 3V, IOUT = 0.5A
72
Thermal Regulation
Temperature Stability
Long-Term Stability
RMS Output Noise
TA = 25°C, 30ms pulse
0.004
0.5
0.02
1.0
%/W
%
•
TA = 125°C, 1000hrs.
0.03
0.003
%
TA = 25°C, 10Hz ≤ f ≤ 10kHz
%
(% of VOUT
)
Thermal Resistance,
Juncation to Case
SOT-223
TO-252
15
3
°C/W
°C/W
°C
Thermal Shutdown
150
Notes:
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are
measured at a constant junction temperature by low duty cycle pulse testing.
2. Line and load regulation are guaranteed up to the maximum power dissipation. 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. FAN1616A only.
4. Output current must be limited to meet the absolute maximum ratings of the part.
REV. 1.0.5 3/1/02
3
PRODUCT SPECIFICATION
FAN1616A
Typical Performance Characteristics
1.5
1.4
0.10
0.05
0
∆I = 0.5A
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0
T
= 0°C
J
-0.05
-0.10
T
= 25°C
J
T
= 125°C
J
-0.15
-0.20
0
0.2
0.4
0.6
0.8
1.0
-75 -50 -25
0
25 50 75 100 125150 175
OUTPUT CURRENT (A)
JUNCTION TEMPERATURE (°C)
Figure 2. Dropout Voltage vs. Output Current
Figure 3. Load Regulation vs. Temperature
1.260
1.255
1.250
1.245
1.240
1.235
3.70
VOUT SET WITH 1% RESISTORS
3.65
VOUT = 3.6V1
3.60
3.55
3.50
3.45
3.40
Note:
1. FAN1616A Only
1.230
1.225
1.220
1.215
1.210
3.35
VOUT = 3.3V
3.30
3.25
Note:
1. FAN1616A Only
3.20
-75 -50 -25
0
25 50 75 100 125150 175
-75 -50 -25
0
25 50 75 100 125150 175
JUNCTION TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
Figure 4. Reference Voltage vs. Temperature
Figure 5. Output Voltage vs. Temperature
5
4
3
2
1
0
100
Note:
90
1. FAN1616A Only
80
70
60
50
40
30
20
10
0
-75 -50 -25
0
25 50 75 100 125150 175
-75 -50 -25
0
25 50 75 100 125150 175
JUNCTION TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
Figure 6. Minimum Load Current vs. Temperature
Figure 7. Adjust Pin Current vs. Temperature
4
REV. 1.0.5 3/1/02
FAN1616A
PRODUCTSPECIFICATION
Typical Performance Characteristics (continued)
90
80
70
60
50
4
3
2
1
TO-252
40
30
SOT-223
(VIN - VOUT) ≤ 3V
0.5 ≤ VRIPPLE ≤ 2V
IOUT = 0.5A
20
10
0
0
50 60 70 80 90 100 110 120 130 140 150
10
100
1K
10K
100K
CASE TEMPERATURE (°C)
FREQUENCY (Hz)
Figure 8. Ripple Rejection vs. Frequency
Figure 9. Maximum Power Dissipation
REV. 1.0.5 3/1/02
5
PRODUCT SPECIFICATION
FAN1616A
Mechanical Dimensions
3-Lead TO-252 Package
Notes:
Inches
Millimeters
Symbol
Notes
1. Dimensions are exclusive of mold flash, metal burrs or interlead
protrusion.
Min.
Max.
Min.
Max.
A
.086
.025
.030
.205
.018
.018
.094
.035
2.19
0.64
0.76
5.21
0.46
0.46
2.39
0.89
2. Stand off-height is measured from lead tip with ref. to Datum -B-.
3. Foot length is measured with ref. to Datum -A- with lead surface.
4. Thermal pad contour optional within dimension b3 and L3.
b
b2
b3
c
.045
.215
.024
.023
1.14
5.46
0.61
0.58
4
5. Formed leads to be planar with respect to one another at seating
place -C-.
c2
D
.210
.250
.245
.265
5.33
6.35
6.22
6.73
1
1
E
6. Dimensions and tolerances per ASME Y14.5M-1994.
e
.090 BSC
2.29 BSC
H
.370
.055
.410
.070
9.40
1.40
10.41
1.78
L
3
4
.108 REF
2.74 REF
L1
L3
L4
.035
.025
.080
.040
0.89
0.64
2.03
1.02
E
@PKG/
@HEATSINK
b3
L3
c2
D
E-PIN
L4
H
b2
L1
L
b
e
α = 0° – 10°
-B- -A-
A
-C-
6
REV. 1.0.5 3/1/02
FAN1616A
PRODUCTSPECIFICATION
Mechanical Dimensions
4-Lead SOT-223 Package
Inches
Millimeters
Symbol
Notes
Min.
Max.
Min.
Max.
A
A1
B
c
—
—
.071
.181
.033
.090
.264
.148
.124
.041
.287
—
—
—
1.80
4.80
.840
2.29
6.71
3.71
3.15
1.04
7.29
—
.025
—
.640
—
D
E
e
.248
.130
.115
.033
.264
.012
—
6.30
3.30
2.95
.840
6.71
.310
—
F
H
I
10°
10°
J
10°
.0008
16°
.0040
10°
.0203
16°
.1018
K
L
10°
.010
16°
.014
10°
.250
16°
.360
M
N
D
e
K
A
E
H
N
J
I
M
L
B
A1
c
F
REV. 1.0.5 3/1/02
7
PRODUCT SPECIFICATION
FAN1616A
Ordering Information
Product Number
FAN1616ADX
Package
TO-252 in tape and reel
SOT-223 in tape and reel
TO-252 in tape and reel
SOT-223 in tape and reel
TO-252 in tape and reel
SOT-223 in tape and reel
TO-252 in tape and reel
SOT-223 in tape and reel
TO-252 in tape and reel
SOT-223 in tape and reel
FAN1616ASX
FAN1616AD18X
FAN1616AS18X
FAN1616AD25X
FAN1616AS25X
FAN1616AD33X
FAN1616AS33X
FAN1616AD5X
FAN1616AS5X
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
3/1/02 0.0m 006
Stock#DS30001616
2002 Fairchild Semiconductor Corporation
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FAIRCHILD
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