RC1616S5T [FAIRCHILD]

Fixed Positive LDO Regulator, 5V, 1.2V Dropout, BIPolar, PDSO4, PLASTIC, SOT-223, 4 PIN;


型号：	RC1616S5T
厂家：	FAIRCHILD SEMICONDUCTOR
描述：	Fixed Positive LDO Regulator, 5V, 1.2V Dropout, BIPolar, PDSO4, PLASTIC, SOT-223, 4 PIN 光电二极管输出元件调节器
文件：	总8页 (文件大小：325K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

www.fairchildsemi.com

RC1616

0.5A Adjustable/Fixed Low Dropout Linear Regulator

Features

Description

• 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

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.

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

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

RC1616

V_IN= 3.3V

V_IN

V_OUT

1.5V at 0.5A

10µF

22µF

124Ω

ADJ

24.9Ω

RC1616-3.3

V_IN= 5V

V_IN

V_OUT

3.3V at 0.5A

10µF

22µF

GND

REV. 1.0.8 5/20/02

PRODUCT SPECIFICATION

RC1616

Pin Assignments

RC1616S (Variable)

RC1616S-X (Fixed)

RC1616D (Variable)

RC1616D-X (Fixed)

Front View

Tab is

V_OUT

OUT

ADJ/GND

4-Lead Plastic SOT-223

_JC= 15°C/W*

OUT

ADJ/

GND

3-Lead Plastic TO-252

_JC= 3°C/W*

*With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, Θ_JAcan 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.

7.5

Unit

V_IN

Operating Junction Temperature Range

Storage Temperature Range

Lead Temperature (Soldering, 10 sec.)

125

150

300

°C

-65

REV. 1.0.8 5/20/02

RC1616

PRODUCT SPECIFICATION

Electrical Characteristics

Operating Conditions: V_IN≤ 7V, T_J= 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 ≤ (V_IN- V_OUT) ≤ 5.75V,

10mA ≤ I_OUT≤ 0.5A

•

1.225

(-2%)

1.250

1.275

(+2%)

Output Voltage

10mA ≤ I_OUT≤ 0.5A

RC1616-2.5, 4.0V ≤ V_IN≤ 7V

RC1616-3.3, 4.5V ≤ V_IN≤ 7V

RC1616-5, 6.2V ≤ V_IN≤ 7V

•

2.450

3.234

4.900

2.500

3.300

5.000

2.550

3.366

5.100

Line Regulation^1,2

Load Regulation^1,2,3

(V_OUT+ 1.5V) ≤ V_IN≤ 7V, I_OUT= 10mA

(V_IN– V_OUT) = 2V, 10mA ≤ I_OUT≤ 0.5A

∆V_REF= 1%, I_OUT= 0.5A

•

0.005

0.05

1.000

0.2

0.5

Dropout Voltage

1.200

120

Adjust Pin Current³

Adjust Pin Current Change³

µA

1.5V ≤ (V_IN– V_OUT) ≤ 5.75,

10mA ≤ I_OUT≤ 0.5A

0.2

Minimum Load Current

Quiescent Current

Ripple Rejection

1.5V ≤ (V_IN– V_OUT) ≤ 5.75

•

V_IN= V_OUT+ 1.25V

f = 120Hz, C_OUT= 22µF Tantalum,

(V_IN– V_OUT) = 3V, I_OUT= 0.5A

Thermal Regulation

Temperature Stability

Long-Term Stability

RMS Output Noise

T_A= 25°C, 30ms pulse

0.004

0.5

0.02

1.0

%/W

•

T_A= 125°C, 1000hrs.

0.03

0.003

T_A= 25°C, 10Hz ≤ f ≤ 10kHz

(% of V_OUT

)

Thermal Resistance, Junction SOT-223

°C/W

°C

to Case

TO-252

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. RC1616 only.

REV. 1.0.8 5/20/02

PRODUCT SPECIFICATION

RC1616

Typical Performance Characteristics

1.5

1.4

0.10

0.05

∆I = 0.5A

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

= 0°C

-0.05

-0.10

= 25°C

= 125°C

-0.15

-0.20

0.2

0.4

0.6

0.8

1.0

-75 -50 -25

25 50 75 100 125150 175

OUTPUT CURRENT (A)

JUNCTION TEMPERATURE (°C)

Figure 1. Dropout Voltage vs. Output Current

Figure 2. Load Regulation vs. Temperature

1.250

1.245

1.240

1.235

1.230

1.225

1.220

1.215

1.210

1.205

1.200

3.70

V_OUTSET WITH 1% RESISTORS

3.65

V_OUT= 3.6V¹

3.60

3.55

3.50

3.45

3.40

3.35

V_OUT= 3.3V

3.30

3.25

Note:

1. RC1616 Only

3.20

-75 -50 -25

25 50 75 100 125150 175

-75 -50 -25

25 50 75 100 125150 175

JUNCTION TEMPERATURE (°C)

Figure 3. Reference Voltage vs. Temperature

Figure 4. Output Voltage vs. Temperature

100

Note:

1. RC1616 Only

-75 -50 -25

25 50 75 100 125150 175

-75 -50 -25

25 50 75 100 125150 175

JUNCTION TEMPERATURE (°C)

Figure 5. Minimum Load Current vs. Temperature

Figure 6. Adjust Pin Current vs. Temperature

REV. 1.0.8 5/20/02

RC1616

PRODUCT SPECIFICATION

Typical Performance Characteristics (continued)

1.50

1.25

1.00

0.75

(V_IN- V_OUT) ≤ 3V

0.5 ≤ V_RIPPLE≤ 2V

I_OUT= 0.5A

0.50

-75 -50 -25

25 50 75 100 125150 175

100

10K

100K

TEMPERATURE (°C)

FREQUENCY (Hz)

Figure 7. Short-Circuit Current vs. Temperature

Figure 8. Ripple Rejection vs. Frequency

TO-252

SOT-223

50 60 70 80 90 100 110 120 130 140 150

CASE TEMPERATURE (°C)

Figure 9. Maximum Power Dissipation

REV. 1.0.8 5/20/02

PRODUCT SPECIFICATION

RC1616

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.

.086

.025

.030

.205

.018

.094

.035

2.19

0.64

0.76

5.21

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.

.045

.215

.024

.023

1.14

5.46

0.61

0.58

5. Formed leads to be planar with respect to one another at seating

place -C-.

.210

.250

.245

.265

5.33

6.35

6.22

6.73

6. Dimensions and tolerances per ASME Y14.5M-1994.

.090 BSC

2.29 BSC

.370

.055

.410

.070

9.40

1.40

10.41

1.78

.108 REF

2.74 REF

.035

.025

.080

.040

0.89

0.64

2.03

1.02

@PKG/

@HEATSINK

E-PIN

α = 0° – 10°

-B- -A-

-C-

REV. 1.0.8 5/20/02

RC1616

PRODUCT SPECIFICATION

Mechanical Dimensions

4-Lead SOT-223 Package

Inches

Millimeters

Symbol

Notes

Min.

Max.

Min.

Max.

—

.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

—

.248

.130

.115

.033

.264

.012

—

6.30

3.30

2.95

.840

6.71

.310

—

10°

.0008

16°

.0040

10°

.0203

16°

.1018

10°

.010

16°

.014

10°

.250

16°

.360

REV. 1.0.8 5/20/02

PRODUCT SPECIFICATION

RC1616

Ordering Information

Product Number

RC1616D

Package

TO-252

SOT-223

TO-252

SOT-223

TO-252

SOT-223

TO-252

SOT-223

RC1616S

RC1616D-2.5

RC1616S-2.5

RC1616D-3.3

RC1616S-3.3

RC1616D-5

RC1616S-5

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

5/20/02 0.0m 004

Stock#DS30001616

 2002 Fairchild Semiconductor Corporation

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