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RC1616のメーカーはFairchild Semiconductorです、この部品の機能は「0.5A Adjustable/Fixed Low Dropout Linear Regulator」です。 |
部品番号 | RC1616 |
| |
部品説明 | 0.5A Adjustable/Fixed Low Dropout Linear Regulator | ||
メーカ | Fairchild Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとRC1616ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
www.fairchildsemi.com
RC1616
0.5A Adjustable/Fixed Low Dropout Linear Regulator
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 2.5V, 3.3V or 5V
Applications
• USB Controlled Power Supply
• High efficiency linear regulators for
Mixed Voltage Logic, ASIC, FPGA based systems
• Post regulators for switching supplies
• Battery chargers
• 5V to 3.3V, or 2.5V, 1.8V, 1.5V linear regulators
• Motherboard clock supplies
• SDRAM Module supplies
Description
The RC1616 and RC1616-2.5, -3.3 and -5 are low dropout
three-terminal regulators with 0.5A output current capability.
These devices have been optimized for low voltage where
transient response and minimum input 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
RC1616 flows into the load, increasing efficiency.
The RC1616 series regulators are available in the industry-
standard SOT-223 and TO-252 power packages.
Typical Applications
VIN = 3.3V
10µF
+
RC1616
VIN VOUT
ADJ
124Ω
+ 1.5V at 0.5A
22µF
24.9Ω
VIN = 5V
10µF
+
RC1616-3.3
VIN VOUT
GND
+ 3.3V at 0.5A
22µF
REV. 1.0.8 5/20/02
1 Page RC1616
PRODUCT SPECIFICATION
Electrical Characteristics
Operating Conditions: VIN ≤ 7V, 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 1.250 1.275
(-2%)
(+2%)
V
Output Voltage
Line Regulation1,2
Load Regulation1,2,3
10mA ≤ IOUT ≤ 0.5A
RC1616-2.5, 4.0V ≤ VIN ≤ 7V
RC1616-3.3, 4.5V ≤ VIN ≤ 7V
RC1616-5, 6.2V ≤ VIN ≤ 7V
• 2.450 2.500 2.550
• 3.234 3.300 3.366
• 4.900 5.000 5.100
(VOUT + 1.5V) ≤ VIN ≤ 7V, IOUT = 10mA •
0.005 0.2
(VIN – VOUT) = 2V, 10mA ≤ IOUT ≤ 0.5A •
0.05 0.5
V
V
V
%
%
Dropout Voltage
Adjust Pin Current3
∆VREF = 1%, IOUT = 0.5A
• 1.000 1.200 V
• 35 120 µA
Adjust Pin Current Change3 1.5V ≤ (VIN – VOUT) ≤ 5.75,
10mA ≤ IOUT ≤ 0.5A
• 0.2 5 µA
Minimum Load Current
1.5V ≤ (VIN – VOUT) ≤ 5.75
• 10
mA
Quiescent Current
VIN = VOUT + 1.25V
• 4 13 mA
Ripple Rejection
f = 120Hz, COUT = 22µF Tantalum,
(VIN – VOUT) = 3V, IOUT = 0.5A
60 72
dB
Thermal Regulation
TA = 25°C, 30ms pulse
0.004 0.02 %/W
Temperature Stability
• 0.5
%
Long-Term Stability
RMS Output Noise
(% of VOUT)
Thermal Resistance, Junction
to Case
TA = 125°C, 1000hrs.
TA = 25°C, 10Hz ≤ f ≤ 10kHz
SOT-223
TO-252
0.03
0.003
15
3
1.0 %
%
°C/W
°C/W
Thermal Shutdown
150 °C
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. RC1616 only.
REV. 1.0.8 5/20/02
3
3Pages PRODUCT SPECIFICATION
Mechanical Dimensions
3-Lead TO-252 Package
Symbol
A
b
b2
b3
c
c2
D
E
e
H
L
L1
L3
L4
Inches
Min. Max.
.086 .094
.025 .035
.030
.205
.018
.018
.045
.215
.024
.023
.210 .245
.250 .265
.090 BSC
.370 .410
.055 .070
.108 REF
.035 .080
.025 .040
Millimeters
Min. Max.
2.19 2.39
0.64 0.89
0.76
5.21
0.46
0.46
1.14
5.46
0.61
0.58
5.33 6.22
6.35 6.73
2.29 BSC
9.40 10.41
1.40 1.78
2.74 REF
0.89 2.03
0.64 1.02
Notes
4
1
1
3
4
RC1616
Notes:
1. Dimensions are exclusive of mold flash, metal burrs or interlead
protrusion.
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.
5. Formed leads to be planar with respect to one another at seating
place -C-.
6. Dimensions and tolerances per ASME Y14.5M-1994.
E
@PKG/
@HEATSINK
b3
L3
c2
D
H
E-PIN
b2 L4
b
e
A
-C-
L1
L
α = 0° – 10°
-B- -A-
6 REV. 1.0.8 5/20/02
6 Page | |||
ページ | 合計 : 8 ページ | ||
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部品番号 | 部品説明 | メーカ |
RC1616 | 0.5A Adjustable/Fixed Low Dropout Linear Regulator | Fairchild Semiconductor |