NCP630AD2TR4 - ON Semiconductor

June, 2005 − Rev. 5 1Publication Order Number:

NCP630/D

NCP630

3.0 A Fast Linear Voltage

Regulators

The NCP630 is a low dropout positive voltage regulator that is

capable of providing a guaranteed output current of 3.0 A with a

maximum dropout voltage of 1.25 V at 3.0 A over temperature. The

fast turn on time allows step changes in loads commonly found in low

voltage microprocessor applications. The NCP630 is currently of fered

as an adjustable output version that can be programmed down to 1.2 V

with two external resistors and as a fixed output version at 3.47 V. On

chip trimming adjusts the reference/output voltage to within "1.5%

accuracy. Internal protection features consist of output current limiting

and thermal shutdown. NCP630 is available in D2PAK package.

Features

•Output Current of 3.0 A

•1.25 V Maximum Dropout Voltage at 3.0 A Over Temperature

•Voltage on Shutdown Pin is TTL Compatible

•Reference/Output Voltage Trimmed to "1.5%

•Current Limit Protection

•Thermal Shutdown Protection

•−40°C to 125°C Junction Temperature Range

•Pb−Free Packages are Available

Applications

•Microprocessor Power Supplies

•DSP Power Supplies

•SMPS Post Regulation

•Battery Chargers

Figure 1. Typical Application Circuit for NCP630A

NPUT Vin Vout

NCP630A

ADJ

GND

out

@ 3 A

+Co

33 mF

10 kW

Shutdown

Cin

68 mF−

R2 +R1 ǒVout

1.216 *1Ǔ

Figure 2. Typical Application Circuit for NCP630G

INPUT Vin Vout

NCP630G

SENSE

GND

out

@ 3 A

+Co

33 mF

Shutdown

Cin

68 mF−

D2PAK

D2T SUFFIX

CASE 936A

MARKING

DIAGRAM

Tab = Ground

Pin 1. Shutdown

2. Vin

3. Ground

4. Vout

5. Adj

x = Specific Device Code

A = Assembly Location

WL = Wafer Lot

Y = Year

WW = Work Week

G = Pb−Free Package

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

Tab = Ground

Pin 1. Shutdown

2. Vin

3. Ground

4. Vout

5. Sense

NCP630A NCP630G

P630xD2T

AWLYWWG

NCP630

http://onsemi.com

MAXIMUM RATINGS

Rating Symbol Value Unit

Input Voltage (Note 1) Vin 12 V

Shutdown Voltage Shutdown −0.3 to Vin + 0.3 V

Output Voltage Vout −0.3 to Vin + 0.3 V

Output Short Circuit Duration (Note 2) − Infinite −

Power Dissipation and Thermal Characteristics

Case 936F (D2PAK)

Power Dissipation (Note 2)

Thermal Resistance, Junction−to−Ambient

Thermal Resistance, Junction−to−Case

RqJA

RqJC

Internally Limited

5.0

°C/W

Operating Junction Temperature Range TJ−40 to 125 °C

Storage Temperature Range Tstg −55 to 150 °C

Lead Soldering Temperature @ 260°C Tsolder 10 sec

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit

values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.

1. This device series contains ESD protection and exceeds the following tests:

Human Body Model JESD 22−A114−B

Machine Model JESD 22−A115−A

2. The maximum package power dissipation is:

PD+

TJ(max)*TA

RqJA

PIN FUNCTION DESCRIPTION

Pin No. NCP630A NCP630G Description

1 Shutdown Shutdown This input is used to place the NCP630 into shutdown mode. The NCP630

is active when a voltage greater than 2.0 V is applied. The NCP630 will be

placed into a shutdown mode when a voltage less than 0.8 V is applied. If

left unused then connect the pin high.

2 Vin Vin Positive power supply input voltage

3, Tab Ground Ground Power supply ground

4 Vout Vout Regulated output voltage

5 Adj − This pin is to be Connected to the Rsense resistors on the output. It main-

tains 1.216 V between itself and ground. Refer to Figure 1 for equation.

5 − Sense This pin is to be connected near the load for better regulation.

NCP630

http://onsemi.com

ELECTRICAL CHARACTERISTICS (Cin = 68 mF, Cout = 33 mF, Vin = Vout + 1.5 V, Iout = 10 mA, for typical value TJ = 25°C, for min

and max values TJ = −40°C to 125°C unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

NCP630A

Reference Voltage

(Vin = Vout + 1.5 V to 7.0 V, Iout = 10 mA to 3.0 A, TJ = 25°C)

(Vin = Vout + 1.5 V to 7.0 V, Iout = 10 mA to 3.0 A, TJ = −40°C to 125°C)

Vadj 1.198

1.180 1.216

−1.234

1.253

Line Regulation (Notes 3 and 4)

(Vin = Vout + 1.5 V to 7.0 V, TJ = 25°C)

(Vin = Vout + 1.5 V to 7.0 V, TJ = −40°C to 125°C)

Regline −

−0.02

0.06 −

−

Load Regulation (Notes 3 and 4)

(Iout = 10 mA to 3.0 A, TJ = 25°C)

(Iout = 10 mA to 3.0 A, TJ = −40°C to 125°C)

Regload −

−0.01

0.06 −

−

Dropout Voltage (Measured at Vout – 2%)

(Iout = 300 mA)

(Iout = 3.0 A)

Vin−Vout −

−0.75

1.0 1.0

1.25

Ground Pin Current in Normal Mode

(Iout = 300 mA)

(Iout = 3.0 A)

IGnd −

−0.4

1.0 1.0

2.0

Ground Pin Current in Shutdown Mode

(Vshutdown = 0.8 V) IGnd − 15 50 mA

Peak Output Limit Iout 3.0 6.0 − A

Short Current Limit (Note 5) ISC − 6.5 − A

Thermal Shutdown − − 165 − °C

Shutdown Input Threshold Voltage

(Voltage Increasing, Output Turns On, Logic High)

(Voltage Decreasing, Output Turns Off, Logic Low)

Vtth(shutdown) 2.0

−−

0.8

Turn−off Delay, Iout = 3.0 A TD(off) − 20 − ms

Turn−on Delay, Iout = 3.0 A TD(on) − 25 − ms

Shutdown Input Low Current (VShutdown = 0.8 V),

(Negative current flows out of pin) IIL −10 −5.0 −1.0 mA

Shutdown Input High Current (VShutdown = 2.0 V),

(Negative current flows out of pin) IIH −10 −4.5 −1.0 mA

Ripple Rejection

(Cout = 100 mF, f = 1.0 kHz) RR − 85 − dB

Output Noise Density (f = 120 Hz) − − 0.6 − mVńHz

Output Noise Voltage

(f = 20 Hz – 100 kHz) Vn − 210 − mVrms

3. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

4. Line regulation is defined as the change in output voltage for a change in input voltage. Load regulation is defined as the change in output

voltage for a change in output load current at a constant temperature. The limits for line and load regulation are contained within the refer-

ence voltage specification, Vadj. Typical numbers are included in the specification for line and load regulation.

5. The short circuit limit is for device protection. Maximum output current is guaranteed to be greater or equal to 3.0 A with a 6.0 A typical

as listed in the peak output limit specification.

NCP630

http://onsemi.com

ELECTRICAL CHARACTERISTICS (Cin = 68 mF, Cout = 33 mF, Vin = Vout + 1.5 V, Iout = 10 mA, for typical value TJ = 25°C, for min

and max values TJ = 0°C to 125°C unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

NCP630G

Output Voltage

(Vin = 5.0 V to 7.0 V, Iout = 10 mA to 3.0 A, TJ = 25°C)

(Vin = 5.0 V to 7.0 V, Iout = 10 mA to 3.0 A, TJ = 0°C to 125°C)

Vout 3.418

3.383 3.470

−3.522

3.557

Line Regulation (Notes 6 and 7)

(Vin = 5.0 V to 7.0 V, TJ = 25°C)

(Vin = 5.0 V to 7.0 V, TJ = 0°C to 125°C)

Regline −

−0.02

0.06 −

−

Load Regulation (Notes 6 and 7)

(Iout = 10 mA to 3.0 A, TJ = 25°C)

(Iout = 10 mA to 3.0 A, TJ = 0°C to 125°C)

Regload −

−0.01

0.06 −

−

Dropout Voltage (Measured at Vout – 2%)

(Iout = 300 mA)

(Iout = 3.0 A)

Vin−Vout −

−0.75

1.0 1.0

1.25

Ground Pin Current in Normal Mode

(Iout = 300 mA)

(Iout = 3.0 A)

IGnd −

−0.4

1.0 1.0

2.0

Ground Pin Current in Shutdown Mode

(Vshutdown = 0.8 V) IGnd − 26 50 mA

Peak Output Limit Iout 3.0 5.0 − A

Short Current Limit (Note 8) ISC − 5.0 − A

Thermal Shutdown − − 165 − °C

Shutdown Input Threshold Voltage

(Voltage Increasing, Output Turns On, Logic High)

(Voltage Decreasing, Output Turns Off, Logic Low)

Vtth(shutdown) 2.0

−−

0.8

Turn−off Delay, Iout = 3.0 A TD(off) − 20 − ms

Turn−on Delay, Iout = 3.0 A TD(on) − 25 − ms

Shutdown Input Low Current (Vin = 0.8 V),

(Negative current flows out of pin) IIL −10 −5.0 −1.0 mA

Shutdown Input High Current (Vin = 2.0 V),

(Negative current flows out of pin) IIH −10 −4.5 −1.0 mA

Ripple Rejection

(Cout = 100 mF, f = 1.0 kHz) RR − 85 − dB

Output Noise Density (f = 120 Hz) − − 0.6 − mVńHz

Output Noise Voltage

(f = 10 Hz – 100 kHz) Vn − 210 − mVrms

6. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

7. Line regulation is defined as the change in output voltage for a change in input voltage. Load regulation is defined as the change in output

voltage for a change in output load current at a constant temperature. The limits for line and load regulation are contained within the output

voltage specification, Vout. Typical numbers are included in the specification for line and load regulation.

8. The short circuit limit is for device protection. Maximum output current is guaranteed to be greater or equal to 3.0 A with a 5.0 A typical

as listed in the peak output limit specification.

NCP630

http://onsemi.com

TYPICAL CHARACTERISTICS

Figure 3. Output Voltage versus Temperature Figure 4. Short Circuit Current Limit versus

Temperature

TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C)

100806040200−20−40

3.450

3.455

3.460

3.465

3.470

3.475

3.480

100806040200−20−40

Figure 5. Dropout Voltage versus Temperature Figure 6. Ground Current versus Temperature

TA, TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C)

100806040200−20−40

0.2

0.4

0.6

0.8

1.2

100806040200−20−40

0.2

0.4

0.6

0.8

1.2

1.8

Figure 7. Ground Pin Current in Shutdown

Mode versus Temperature Figure 8. Start−up Transient

TA, AMBIENT TEMPERATURE (°C) TIME (ms)

806040200−20−40−60

120100806040200

VOUT, OUTPUT VOLTAGE (V)

120

ISC, SHORT CIRCUIT CURRENT LIMIT (A)

120

VIN − VOUT, DROPOUT VOLTAGE (V)

120

IOUT = 3.0 A

IOUT = 300 mA

IGND, GROUND CURRENT (mA)

120

1.4

1.6

IOUT = 3.0 A

IOUT = 300 mA

VIN = VOUT + 1.5 V

VSD = VIN

IGND, GROUND CURRENT (mA)

140120100

VIN = VOUT + 1.5 V

VSD = 0 V

VOUT, OUTPUT

VOLTAGE (V)

SHUTDOWN

VOLTAGE (V)

4COUT = 100 mF

RL = 3.5 W

NCP630

http://onsemi.com

TYPICAL CHARACTERISTICS

Figure 9. Output Noise Density Figure 10. Ripple Rejection

f, FREQUENCY (kHz) f, FREQUENCY (kHz)

1010.10.01

0.2

0.4

0.6

0.8

1.2

1010.10.01

100

VN, NOISE VOLTAGE (mV/ Hz)

100

RIPPLE REJECTION (dB)

120

100

VIN = VOUT + 1.0 V

COUT − 33 mF Tantalum

CIN = 100 mF

IOUT = 10 mA

VOUT = 3.47 V

VIN = 5.0 V + 0.5 VPP

COUT = 100 mF Electrolytic

IOUT = 10 mA

NCP630

http://onsemi.com

APPLICATION INFORMATION

Input Capacitor

The minimum capacitance required for stability is a 68 mF

aluminum electrolytic or tantalum capacitor. The maximum

ESR allowed for stability is 5.0 W. The capacitor should be

place as close as possible to the input of the device.

The placement of a ceramic capacitor in parallel is not

recommend due to possible instabilities.

Output Capacitor

A minimum output capacitor value of 33 mF is required for

stability. The type of capacitor can be aluminum electrolytic

or tantalum capacitor. ESR can vary up to a maximum of

2.0 ohms for stability. The capacitor should be placed as

close as possible to the output of the device.

The placement of a ceramic capacitor in parallel is not

recommend due to possible instabilities.

Sense Pin

The sense pin of the NCP630G will need to be connected

near the output voltage. This provides great advantages

when the linear regulator can’t be near the load. The sense

pin will monitor the load and allow the linear regulator to

adjust for losses in the line between itself and the load. Thus

it will provide good accuracy for a remote load.

ADJ Pin

The typical application circuits for the fixed and

adjustable output regulators are shown in Figures 1 and 2.

The adjustable devices develop and maintain the nominal

1.216 V reference voltage between the adjust and ground

pins. The adjust pin current, Iadj, is typically 40 nA and

normally lower than the current flowing through R1 and R2,

thus it generates a small output voltage error that can usually

be ignored. For the fixed output devices R1 and R2 are

included within the device.

Reverse Current

Some situations might occur were the output pin is raised

to a voltage while the input pin is at zero volts. This situation

will not damage the device.

If the output voltage is raised to a higher voltage than the

input voltage a diode is recommended from output to input

with the anode connect to the output pin.

Thermal Considerations

This series contains an internal thermal limiting circuit

that is designed to protect the regulator in the event that the

maximum junction temperature is exceeded. When

activated, typically at 165°C, the regulator output switches

off and then back on as the die cools. As a result, if the device

is continuously operated in an overheated condition, the

output will appear to be oscillating. This feature provides

protection from a catastrophic device failure due to

accidental overheating. It is not intended to be used as a

substitute for proper heatsinking. The maximum device

power dissipation can be calculated by:

PD+TJ(max) *TA

RqJA

The devices are available in surface mount D2PAK

package. The package has an exposed metal tab that is

specifically designed to reduce the junction to air thermal

resistance, RqJA, by utilizing the printed circuit board

copper as a heat dissipater. Figure 11 shows typical RqJA

values that can be obtained from a square pattern using

economical single sided 2.0 ounce copper board material.

The final product thermal limits should be tested and

quantified in order to insure acceptable performance and

reliability. The actual RqJA can vary considerably from the

graphs shown. This will be due to any changes made in the

copper aspect ratio of the final layout, adjacent heat sources,

and air flow.

1.0

1.5

2.0

2.5

3.0

3.5

010203025155.0

L, LENGTH OF COPPER (mm)

PD(max) for TA = 50°C

Minimum

Size Pad

2.0 oz. Copper

ÎÎÎÎ

Free Air

Mounted

Vertically

PD, MAXIMUM POWER DISSIPATION (W)

RqJA

R , THERMAL RESISTANCE

JAθ

JUNCTION−TO−AIR ( C/W)°

Figure 11. 3−Pin and 5−Pin D2PAK

Thermal Resistance and Maximum Power

Dissipation versus P.C.B. Copper Length

NCP630

http://onsemi.com

TAPE AND REEL SPECIFICATION

SOP

Description Leads Package

Length Package

Width Package

Thickness Reel

Quantity Tape

Pitch Tape

Width Vendor P/N

D2PAK 59.2 mm 10 mm 4.4 mm 800 16 mm 24 mm DDPAK−B

Figure 12. Package Carrier Dimensions

11.5 ±0.1

24.0 ±0.3

1.75 ±0.1

16.00

∅1.55 ±0.05

∅1.50 MIN

0.30 $ 0.05

2.40

Max

4.70

R 0.3 MAX

SECTION B−B A0 = 10.60 ±0.15

B0 = 16.50 ±0.15

K0 = 4.90 ±0.15

NOTES:

1. A0 & B0 MEASURED AT 0.3 mm ABOVE BASE OF POCKET

2. 10 PITCHES CUMULATIVE TOTAL ±0.2 mm

ALL DIMENSIONS IN MILLIMETERS

1.00

SECTION A−A

0.70 Max

20°

Max 9.00 11.15

0.30 $ 0.05

2.0 ±0.1

4.0 ±0.1

See Note #2

Figure 13. Reel Dimensions

Nominal

Hub Depth W2MAX

4 mm 4.4 7.1

W1+3

−2

8 mm 8.4 11.1

16 mm 16.4 19.1

28 mm 28.4 31.1

NCP630

http://onsemi.com

ORDERING INFORMATION

Device Nominal

Output Voltage Package Shipping

NCP630AD2T Adj D2PAK 50 Units/Rail

NCP630AD2TG Adj D2PAK

(Pb−Free) 50 Units/Rail

NCP630AD2TR4 Adj D2PAK 800/Tape & Reel

NCP630AD2TR4G Adj D2PAK

(Pb−Free) 800/Tape & Reel

NCP630GD2T 3.47 D2PAK 50 Units/Rail

NCP630GD2TG 3.47 D2PAK

(Pb−Free) 50 Units/Rail

NCP630GD2TR4 3.47 D2PAK 800/Tape & Reel

NCP630GD2TR4G 3.47 D2PAK

(Pb−Free) 800/Tape & Reel

NCP630

http://onsemi.com

PACKAGE DIMENSIONS

8.38

0.33

1.016

0.04

16.02

0.63

10.66

0.42

3.05

0.12

1.702

0.067

SCALE 3:1 ǒmm

inchesǓ

D2PAK

D2T SUFFIX

CASE 936A−02

ISSUE C

5 REF

123

TERMINAL 6 NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. TAB CONTOUR OPTIONAL WITHIN DIMENSIONS A

AND K.

4. DIMENSIONS U AND V ESTABLISH A MINIMUM

MOUNTING SURFACE FOR TERMINAL 6.

5. DIMENSIONS A AND B DO NOT INCLUDE MOLD

FLASH OR GATE PROTRUSIONS. MOLD FLASH

AND GATE PROTRUSIONS NOT TO EXCEED 0.025

(0.635) MAXIMUM.

DIM

AMIN MAX MIN MAX

MILLIMETERS

0.386 0.403 9.804 10.236

INCHES

B0.356 0.368 9.042 9.347

C0.170 0.180 4.318 4.572

D0.026 0.036 0.660 0.914

E0.045 0.055 1.143 1.397

G0.067 BSC 1.702 BSC

H0.539 0.579 13.691 14.707

K0.050 REF 1.270 REF

L0.000 0.010 0.000 0.254

M0.088 0.102 2.235 2.591

N0.018 0.026 0.457 0.660

P0.058 0.078 1.473 1.981

R5 REF

S0.116 REF 2.946 REF

U0.200 MIN 5.080 MIN

V0.250 MIN 6.350 MIN

0.010 (0.254) T

−T−

OPTIONAL

CHAMFER

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

SOLDERING FOOTPRINT*

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice

to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All

operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights

nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications

intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should

Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its of ficers, employees, subsidiaries, affiliates,

and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal

Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

PUBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Japan: ON Semiconductor, Japan Customer Focus Center

2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051

Phone: 81−3−5773−3850

NCP630/D

LITERATURE FULFILLMENT:

Literature Distribution Center for ON Semiconductor

P.O. Box 61312, Phoenix, Arizona 85082−1312 USA

Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada

Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada

Email: orderlit@onsemi.com

ON Semiconductor Website: http://onsemi.com

Order Literature: http://www.onsemi.com/litorder

For additional information, please contact your

local Sales Representative.