FAN1616ADX

www.fairchildsemi.com
REV. 1.0.5 3/1/02
Features
Low dropout voltage
Load regulation: 0.05% typical
Current limit
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
Applications
USB Controlled Power Supply
High efficiency linear regulators for Mixed Voltage
Logic, ASIC, FPGA based systems
Post regulators for switching supplies
Battery chargers
12V to 5V, 3.3V, 2.5V, 1.8V, or adj linear regulators
Motherboard clock supplies
SDRAM Module supplies
Description
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 provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperatures.
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.
The FAN1616A series regulators are available in the
industry-standard SOT-223 and TO-252 power packages.
Typical Applications
V
IN
= 12V V
IN
V
OUT
ADJ
9V at 0.5A
FAN1616A
10µF22µF
R1
124
R2
768
V
IN
= 9V V
IN
V
OUT
GND
3.3V at 0.5A
FAN1616A-3.3
10µF
++
+
+
22µF
V
OUT
= V
REF
(1 + R2/R1) + I
Adj
• R2
FAN1616A
0.5A Adjustable/Fixed Low Dropout Linear Regulator
PRODUCT SPECIFICATION FAN1616A
2
REV. 1.0.5 3/1/02
Pin Assignments
*With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane,
Θ
JA
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
Figure 1. Absolute Maximum Safe Operating Area
Parameter Min. Max. Unit
V
IN
18 V
(V
IN
–V
OUT
) * I
OUT
See Figure 1
Operating Junction Temperature Range -40 125 °C
Storage Temperature Range -65 150 °C
Lead Temperature (Soldering, 10 sec.) 300 °C
Front View Front View
FAN1616AS (Variable)
FAN1616AS-X (Fixed)
FAN1616AD (Variable)
FAN1616AD-X (Fixed)
4-Lead Plastic SOT-223
Θ
JC
= 15°C/W*
3-Lead Plastic TO-252
Θ
JC
= 3°C/W*
Tab is
OUT
Tab is OUT
1
ADJ/
GND
IN
2
3
3
2
1
IN
OUT
ADJ/GND
0.6
0.5
0.4
0.3
0.2
0.1
0
068
10 1242
V
IN
V
OUT
(V)
I
OUT
(A)
FAN1616A PRODUCT SPECIFICATION
REV. 1.0.5 3/1/02
3
Electrical Characteristics
Operating Conditions: V
IN
12V, T
J
= 25°C unless otherwise specied.
The
denotes specications which apply over the specied operating temperature range.
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.
Parameter Conditions Min. Typ. Max. Units
Reference Voltage
3
1.5V
(V
IN
- V
OUT
)
5.75V,
10mA
I
OUT
0.5A
1.225
(-2%)
1.250 1.275
(+2%)
V
Output Voltage
4
10mA
I
OUT
0.5A
FAN1616A-1.8, 3.3V
V
IN
12V
FAN1616A-2.5, 4.0V
V
IN
12V
FAN1616A-3.3, 4.5V
V
IN
12V
FAN1616A-5, 6.2V
V
IN
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 Regulation
1,2
(V
OUT
+ 1.5V)
V
IN
12V, I
OUT
= 10mA
0.005 0.2 %
Load Regulation
1,2,3
(V
IN
V
OUT
) = 2V, 10mA
I
OUT
0.5A
0.05 0.5 %
Dropout Voltage
V
REF
= 1%, I
OUT
= 0.5A
1.000 1.200 V
Adjust Pin Current
3
35 120
µ
A
Adjust Pin Current Change
3, 4
1.5V
(V
IN
V
OUT
)
12V,
10mA
I
OUT
0.5A
0.2 5
µ
A
Minimum Load Current 1.5V
(V
IN
V
OUT
)
12V
10 mA
Quiescent Current V
IN
= V
OUT
+ 1.25V
413mA
Ripple Rejection f = 120Hz, C
OUT
= 22
µ
F Tantalum,
(V
IN
V
OUT
) = 3V, I
OUT
= 0.5A
60 72 dB
Thermal Regulation T
A
= 25
°
C, 30ms pulse 0.004 0.02 %/W
Temperature Stability
0.5 %
Long-Term Stability T
A
= 125
°
C, 1000hrs. 0.03 1.0 %
RMS Output Noise
(% of V
OUT
)
T
A
= 25
°
C, 10Hz
f
10kHz 0.003 %
Thermal Resistance,
Juncation to Case
SOT-223 15
°
C/W
TO-252 3
°
C/W
Thermal Shutdown 150
°
C

FAN1616ADX

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR POS ADJ 500MA DPAK
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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