UPC2925T-E1-AZ - Renesas Electronics

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April 1st, 2010

Renesas Electronics Corporation

Issued by: Renesas Electronics Corporation (http://www.renesas.com)

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2000, 2001, 2007

BIPOLAR ANALOG INTEGRATED CIRCUIT

PC2918, 2925, 2926

THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR

DATA SHEET

Document No. G14983EJ5V0DS00 (5th edition)

Date Published August 2007 NS

Printed in Japan The mark <R> shows major revised points.

The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.

DESCRIPTION

The

PC2918, 2925 and 2926 are three-terminal low dropout voltage regulators with the 1-A output. The

PC2918

outputs 1.8 V, the

PC2925 outputs 2.5 V and the

PC2926 outputs 2.6 V. Since these regulators use a PNP

transistor for the output stage, they achieve a low dropout voltage of 0.7 V TYP. at IO = 1 A and minimize the power

dissipation of the IC. As a result, these regulators can be used to realize sets with lower voltage and power

dissipation.

FEATURES

• Output current capacity: 1 A

• Low dropout voltage

VDIF = 0.5 V MAX. (IO = 0.5 A)

• Output voltage accuracy: VO ± 2%

• On-chip saturation protector rising edge of input voltage

(at low input voltage)

• On-chip over-current limiter and thermal protection

• On-chip output transistor safe operation area protection

PIN CONFIGURATIONS (Marking Side)

Notes 1. No.2 pin and No.4 fin are common GND.

2. No.2 pin is cut. No.2 pin and No.4 fin are common GND.

PC2918HF,

PC2925HF,

PC2926HF: Isolated TO-220 (MP-45G)

PC2918HB,

PC2925HB,

PC2926HB: SC-64 (MP-3)

PC2918T,

PC2925T,

PC2926T: SC-63 (MP-3Z)

321

1: INPUT

2: GND

3: OUTPUT

321

1: INPUT

2: GND

3: OUTPUT

4: GND (Fi

Note1

321

1: INPUT

2: GND

3: OUTPUT

4: GND (Fin)

Note2

<R>

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

BLOCK DIAGRAM

Start-up

circuit Reference

voltage

Thermal

shut down

Error

Amp. Drive

circuit

Saturation

protection

Safe operating

area protection

OUTPUT

GND

INPUT

Over-current

protection

Data Sheet G14983EJ5V0DS 3

PC2918, 2925, 2926

ORDERING INFORMATION

Part Number Package Output Voltage Marking

PC2918HF Isolated TO-220 (MP-45G) 1.8 V 2918

PC2918HB SC-64 (MP-3) 1.8 V 2918

PC2918T SC-63 (MP-3Z) 1.8 V 2918

PC2925HF Isolated TO-220 (MP-45G) 2.5 V 2925

PC2925HB SC-64 (MP-3) 2.5 V 2925

PC2925T SC-63 (MP-3Z) 2.5 V 2925

PC2926HF Isolated TO-220 (MP-45G) 2.6 V 2926

PC2926HB SC-64 (MP-3) 2.6 V 2926

PC2926T SC-63 (MP-3Z) 2.6 V 2926

Remark Tape-packaged products have the symbol -E1, or -E2 suffixed to the part number. Pb-free products have

the symbol -AZ, or -AY suffixed to the part number. Refer to the following table for details.

Part Number Note1 Package Package Type

PC29xxHF Isolated TO-220 (MP-45G) • Packed in envelop

PC29xxHF-AZ Note2 Isolated TO-220 (MP-45G) • Packed in envelop

PC29xxHB SC-64 (MP-3) • Packed in envelop

PC29xxHB-AZ Note2 SC-64 (MP-3) • Packed in envelop

PC29xxHB-AY Note3 SC-64 (MP-3) • Packed in envelop

PC29xxT-E1 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 on draw-out side

• 2000 pcs/reel

PC29xxT-E1-AZ Note2 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 on draw-out side

• 2000 pcs/reel

PC29xxT-E1-AY Note3 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 on draw-out side

• 2000 pcs/reel

PC29xxT-E2 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 at take-up side

• 2000 pcs/reel

PC29xxT-E2-AZ Note2 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 at take-up side

• 2000 pcs/reel

PC29xxT-E2-AY Note3 SC-63 (MP-3Z) • 16 mm wide embossed taping

• Pin 1 at take-up side

• 2000 pcs/reel

Notes 1. xx stands for symbols that indicate the output voltage.

2. Pb-free (This product does not contain Pb in the external electrode.)

3. Pb-free (This product does not contain Pb in the external electrode, Sn100% plating.)

<R>

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified)

Rating Parameter Symbol

PC2918HF,

PC2925HF,

PC2926HF

PC2918HB,

PC2925HB,

PC2926HB,

PC2918T,

PC2925T,

PC2926T

Unit

Input Voltage VIN 20 V

Internal Power Dissipation (TC = 25°C) Note PT 15 10 W

Operating Ambient Temperature TA −30 to +85 °C

Operating Junction Temperature TJ −30 to +150 °C

Storage Temperature Tstg −55 to +150 °C

Thermal Resistance (junction to case) Rth(J-C) 7 12.5 °C/W

Thermal Resistance (junction to ambient) Rth(J-A) 65 125 °C/W

Note Internally limited. When the operating junction temperature rises above 150°C, the internal circuit shuts down

the output voltage.

Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any

parameter. That is, the absolute maximum ratings are rated values at which the product is on the

verge of suffering physical damage, and therefore the product must be used under conditions that

ensure that the absolute maximum ratings are not exceeded.

TYPICAL CONNECTION

OUT

INPUT OUTPUT

PC2918, 2925, 2926

CIN : 0.1

F or higher. Be sure to connect CIN to prevent parasitic oscillation. Set this value according to the length

of the line between the regulator and the INPUT pin. Use of a film capacitor or other capacitor with first-rate

voltage and temperature characteristics is recommended. If using a laminated ceramic capacitor, it is

necessary to ensure that CIN is 0.1

F or higher for the voltage and temperature range to be used.

COUT: 10

F or higher. Be sure to connect COUT to prevent oscillation and improve excessive load regulation. Place

CIN and COUT as close as possible to the IC pins (within 1 to 2 cm). Also, use an electrolytic capacitor with low

impedance characteristics if considering use at sub-zero temperatures.

D1 : If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode.

D2 : If the OUTPUT pin has a lower voltage than the GND pin, connect a Schottky barrier diode.

Caution Make sure that no voltage is applied to the OUTPUT pin from external.

Data Sheet G14983EJ5V0DS 5

PC2918, 2925, 2926

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol Type Number MIN. TYP. MAX. Unit

PC2918 2.8 16 V

PC2925 3.5 16 V

Input Voltage VIN

PC2926 3.6 16 V

Output Current IO All 0 1 A

Operating Ambient Temperature TA All −30 +85 °C

Operating Junction Temperature TJ All −30 +125 °C

Caution Use of conditions other than the above-listed recommended operating conditions is not a problem

as long as the absolute maximum ratings are not exceeded. However, since the use of such

conditions diminishes the margin of safety, careful evaluation is required before such conditions

are used. Moreover, using the MAX. value for all the recommended operating conditions is not

guaranteed to be safe.

ELECTRICAL CHARACTERISTICS

PC2918 (TJ = 25°C, VIN = 2.8 V, IO = 0.5 A, CIN = 0.1

F, COUT = 10

F, unless otherwise specified)

Parameter Symbol Conditions MIN. TYP. MAX. Unit

1.764 1.8 1.836 V Output Voltage VO

2.8 V ≤ VIN ≤ 5 V, 0 A ≤ IO ≤ 1 A,

0°C ≤ TJ ≤ 125°C (1.71) (1.854) V

Line Regulation REGIN 2.8 V ≤ VIN ≤ 16 V 6 25 mV

Load Regulation REGL 0 A ≤ IO ≤ 1 A 7 30 mV

IO = 0 A 2 4 mA Quiescent Current IBIAS

IO = 1 A 20 60 mA

VIN = 2.4 V, IO = 0 A 10 30 mA Startup Quiescent Current IBIAS(S)

VIN = 2.4 V, IO = 1 A 80 mA

Quiescent Current Change

IBIAS 2.8 V ≤ VIN ≤ 16 V, 0°C ≤ TJ ≤ 125°C 2.9 20 mA

Output Noise Voltage Vn 10 Hz ≤ f ≤ 100 kHz 40

Vr.m.s.

Ripple Rejection R•R f = 120 Hz, 2.8 V ≤ VIN ≤ 9 V 45 60 dB

IO = 0.5 A 0.25 0.5 V Dropout Voltage VDIF

IO = 1 A, 0°C ≤ TJ ≤ 125°C 0.7 V

VIN = 2.8 V 1.2 1.7 3.0 A Short Circuit Current IOshort

VIN = 16 V 1.2 A

VIN = 2.8 V 1.0 1.5 3.0 A Peak Output Current IOpeak

VIN = 16 V 1.1 A

Temperature Coefficient of

Output Voltage

VO/

T IO = 5 mA, 0°C ≤ TJ ≤ 125°C

−0.4 mV/°C

Remark Values in parentheses have been measured during product design and are provided as reference values.

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

PC2925 (TJ = 25°C, VIN = 3.5 V, IO = 0.5 A, CIN = 0.1

F, COUT = 10

F, unless otherwise specified)

Parameter Symbol Conditions MIN. TYP. MAX. Unit

2.45 2.5 2.55 V Output Voltage VO

3.5 V ≤ VIN ≤ 5 V, 0 A ≤ IO ≤ 1 A,

0°C ≤ TJ ≤ 125°C (2.375) (2.575) V

Line Regulation REGIN 3.5 V ≤ VIN ≤ 16 V 6 25 mV

Load Regulation REGL 0 A ≤ IO ≤ 1 A 7 30 mV

IO = 0 A 2 4 mA Quiescent Current IBIAS

IO = 1 A 20 60 mA

VIN = 2.4 V, IO = 0 A 10 30 mA Startup Quiescent Current IBIAS(S)

VIN = 3.0 V, IO = 1 A 80 mA

Quiescent Current Change

IBIAS 3.5 V ≤ VIN ≤ 16 V, 0°C ≤ TJ ≤ 125°C 2.9 20 mA

Output Noise Voltage Vn 10 Hz ≤ f ≤ 100 kHz 40

Vr.m.s.

Ripple Rejection R•R f = 120 Hz, 3.5 V ≤ VIN ≤ 9 V 45 60 dB

IO = 0.5 A 0.25 0.5 V Dropout Voltage VDIF

IO = 1 A, 0°C ≤ TJ ≤ 125°C 0.7 V

VIN = 3.5 V 1.2 1.7 3.0 A Short Circuit Current IOshort

VIN = 16 V 1.2 A

VIN = 3.5 V 1.0 1.5 3.0 A Peak Output Current IOpeak

VIN = 16 V 1.1 A

Temperature Coefficient of

Output Voltage

VO/

T IO = 5 mA, 0°C ≤ TJ ≤ 125°C

−0.5 mV/°C

Remark Values in parentheses have been measured during product design and are provided as reference values.

PC2926 (TJ = 25°C, VIN = 3.6 V, IO = 0.5 A, CIN = 0.1

F, COUT = 10

F, unless otherwise specified)

Parameter Symbol Conditions MIN. TYP. MAX. Unit

2.548 2.6 2.652 V Output Voltage VO

3.6 V ≤ VIN ≤ 5 V, 0 A ≤ IO ≤ 1 A,

0°C ≤ TJ ≤ 125°C (2.470) (2.678) V

Line Regulation REGIN 3.6 V ≤ VIN ≤ 16 V 6 25 mV

Load Regulation REGL 0 A ≤ IO ≤ 1 A 7 30 mV

IO = 0 A 2 4 mA Quiescent Current IBIAS

IO = 1 A 20 60 mA

VIN = 2.4 V, IO = 0 A 10 30 mA Startup Quiescent Current IBIAS(S)

VIN = 3.0 V, IO = 1 A 80 mA

Quiescent Current Change

IBIAS 3.6 V ≤ VIN ≤ 16 V, 0°C ≤ TJ ≤ 125°C 2.9 20 mA

Output Noise Voltage Vn 10 Hz ≤ f ≤ 100 kHz 40

Vr.m.s.

Ripple Rejection R•R f = 120 Hz, 3.6 V ≤ VIN ≤ 9 V 45 60 dB

IO = 0.5 A 0.25 0.5 V Dropout Voltage VDIF

IO = 1 A, 0°C ≤ TJ ≤ 125°C 0.7 V

VIN = 3.6 V 1.2 1.7 3.0 A Short Circuit Current IOshort

VIN = 16 V 1.2 A

VIN = 3.6 V 1.0 1.5 3.0 A Peak Output Current IOpeak

VIN = 16 V 1.1 A

Temperature Coefficient of

Output Voltage

VO/

T IO = 5 mA, 0°C ≤ TJ ≤ 125°C

−0.5 mV/°C

Remark Values in parentheses have been measured during product design and are provided as reference values.

Data Sheet G14983EJ5V0DS 7

PC2918, 2925, 2926

TYPICAL CHARACTERISTICS (Reference Values)

50 85 100 150

1.0

1.92

Pd - Total Power Dissipation - W

- Operating Ambient Temperature - ˚C

vs. T

Solid line: PC29xxHF

Broken line: PC29xxHB,

PC29xxT

With infinite heatsink

Without heatsink

−25

−50

0 100 150

= 5 mA

−

50 50

PC2925

PC2918

VO vs. TJ

VO - Output Voltage Change - mV

TJ - Operating Junction Temperature - °C

2.0

1.5

1.0

0.5

= 5 mA

0 1 2 3 4 5 6 7 8

= 0.5 A

= 1 A

= 25˚C

vs. V

( PC2918)

- Output Voltage - V

- Input Voltage - V

00 5 10 15 20

IO = 0 A

IO = 1 A

IO = 0.5 A

TJ = 25˚C

IBIAS (IBIAS(S)) vs. VIN ( PC2918)

IBIAS - Quiescent Current - mA

VIN - Input Voltage - V

3.0

2.0

1.0

= 5 mA

0 1 2 3 4 5 6 7 8

= 0.5 A

= 1 A

= 25˚C

- Output Voltage - V

- Input Voltage - V

vs. V

( PC2925)

00 5 10 15 20

IO = 0 A

IO = 1 A

IO = 0.5 A

TJ = 25˚C

IBIAS (IBIAS(S)) vs. VIN ( PC2925)

IBIAS - Quiescent Current - mA

VIN - Input Voltage - V

<R>

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

0.8

0.6

0.4

0.2

−25 1250 15075 1005025

= 1 A

DIF

vs. T

DIF

- Dropout Voltage - V

- Operating Junction Temperature - °C

2.5

1.5

0.5

= 0˚C

= 125˚C

= 25˚C

05101520

Opeak

vs. V

DIF

( PC2918)

Opeak

- Peak Output Current - A

DIF

- Dropout Voltage - V

2.5

1.5

0.5

= 0˚C

= 125˚C

= 25˚C

05101520

Opeak

vs. V

DIF

( PC2925)

DIF

- Dropout Voltage - V

Opeak

- Peak Output Current - A

0100 1000 10000 100000

= 25˚

= 1 A

PC2918

PC2925

R R vs. f

R R - Ripple Rejection - dB

f - Frequency - Hz

30 0.2 0.4 0.6 1

0.80

- Output Current - A

= 25˚C, f = 120 Hz

2.8 V ≤ V

≤ 9 V ( PC2918)

3.5 V ≤ V

≤ 9 V ( PC2925)

PC2918

PC2925

R R vs. I

R R - Ripple Rejection - dB

00.2 0.4 0.6 1

0.8

0.6

0.4

0.2

00.8

= 25˚C

DIF

vs. I

DIF

- Dropout Voltage - V

- Output Current - A

Data Sheet G14983EJ5V0DS 9

PC2918, 2925, 2926

1.8

1.6

1.4

1.2

0.8

0.6

0.4

0.2

00.5 1 1.5 2 2.5

= 25˚C

= 5 V

= 16 V

= 2.8 V

vs. I

(

PC2918)

- Output Voltage - V

- Output Current - A

2.5

1.5

0.5

00.5 1 1.5 2 2.5

= 25˚C

= 16 V

= 3.5 V

= 5 V

vs. I

(

PC2925)

- Output Voltage - V

- Output Current - A

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

PACKAGE DRAWINGS

PC2918HF,

PC2925HF,

PC2926HF

D 17.0±0.3

3PIN PLASTIC SIP (MP-45G)

NOTE

Each lead centerline is located within 0.25 mm of

its true position (T.P.) at maximum material condition.

ITEM MILLIMETERS

P3HF-254B-4

G 0.25

H 2.54 (T.P.)

A 10.0±0.2

I 5.0±0.3

U 2.4±0.5

Y 8.9±0.7

Z 1.30±0.2

L 8.5±0.2

B 7.0±0.2

C 1.50±0.2

F 0.75±0.10

M 8.5±0.2

P 2.8±0.2

3.3±0.2

2.46±0.2

5.0±0.2

4.5±0.2

0.65±0.10

132

Data Sheet G14983EJ5V0DS 11

PC2918, 2925, 2926

PC2918HB,

PC2925HB,

PC2926HB

SC-64 (MP-3) (Unit: mm)

123

2.32.3

0.75

1.1

0.1

0.5

1.6

0.2

5.0

0.2

6.5

0.2

5.5

0.27.0 MIN.

+0.2

−0.1

1.5+0.2

−0.1

13.7 MIN.

2.3

0.2

0.5

0.1

0.5

+0.2

−0.1

PC2918T,

PC2925T,

PC2926T

SC-63 (MP-3Z) (Unit: mm)

123

6.5±0.2

4.4±0.2

5.0±0.2

0.5±0.1 0.5±0.1

2.3±0.3 2.3±0.3

5.6±0.3

9.5±0.5

2.5±0.5

1.0±0.5

5.5±0.2

1.5

+0.2

2.3±0.2

0.5±0.1

Note Note

0.4 MIN.

0.5 TYP.

0.15±0.15

−0.1

Note The depth of notch at the top of the fin is from 0 to 0.2 mm.

<R>

Data Sheet G14983EJ5V0DS

PC2918, 2925, 2926

RECOMMENDED SOLDERING CONDITIONS

The

PC2918, 2925 and 2926 should be soldered and mounted under the following recommended conditions.

For soldering methods and conditions other than those recommended below, contact an NEC Electronics sales

representative.

For technical information, see the following website.

Semiconductor Device Mount Manual (http://www.necel.com/pkg/en/mount/index.html)

Surface Mount Device

PC29xxT Series: SC-63 (MP-3Z)

Process Conditions Symbol

Infrared Ray Reflow Peak temperature: 235°C or below (Package surface temperature),

Reflow time: 30 seconds or less (at 210°C or higher),

Maximum number of reflow processes: 3 times or less.

IR35-00-3

Vapor Phase Soldering Peak temperature: 215°C or below (Package surface temperature),

Reflow time: 40 seconds or less (at 200°C or higher),

Maximum number of reflow processes: 3 times or less.

VP15-00-3

Partial Heating Method Pin temperature: 350°C or below,

Heat time: 3 seconds or less (Per each side of the device).

P350

PC29xxT-AZ Series Note1,

PC29xxT-AY Series Note2: SC-63 (MP-3Z)

Process Conditions Symbol

Infrared Ray Reflow Peak temperature: 260°C or below (Package surface temperature),

Reflow time: 60 seconds or less (at 220°C or higher),

Maximum number of reflow processes: 3 times or less.

IR60-00-3

Partial Heating Method Pin temperature: 350°C or below,

Heat time: 3 seconds or less (Per each side of the device).

P350

Notes 1. Pb-free (This product does not contain Pb in the external electrode.)

2. Pb-free (This product does not contain Pb in the external electrode, Sn100% plating.)

Caution Apply only one kind of soldering condition to a device, except for "partial heating method", or the

device will be damaged by heat stress.

Remark Flux: Rosin-based flux with low chlorine content (chlorine 0.2 Wt% or below) is recommended.

<R>

Data Sheet G14983EJ5V0DS 13

PC2918, 2925, 2926

Through-hole devices

PC29xxHF Series,

PC29xxHF-AZ Series Note1: Isolated TO-220 (MP-45G)

PC29xxHB Series,

PC29xxHB-AZ Series Note1,

PC29xxHB-AY Series Note2: SC-64 (MP-3)

Process Conditions Symbol

Wave soldering

(only to leads)

Solder temperature: 260°C or below, Flow time: 10 seconds or less. WS60-00-1

Partial heating method Pin temperature: 350°C or below, Heat time: 3 seconds or less (Per each pin). P350

Notes 1. Pb-free (This product does not contain Pb in the external electrode.)

2. Pb-free (This product does not contain Pb in the external electrode, Sn100% plating.)

Caution For through-hole device, the wave soldering process must be applied only to leads, and make sure

that the package body does not get jet soldered.

NOTES ON USE

When the

PC2918, 2925 and 2926 are used with an input voltage that is lower than the value indicated in the

recommended operating conditions, a high quiescent current flows through the device due to saturation of the

transistor of the output stage. (Refer to the “IBIAS (IBIAS(S)) vs. VIN curves in TYPICAL CHARACTERISTICS”).

These products have saturation protector, but a current of up to 80 mA MAX. may flow through the device. Thus the

power supply on the input side must have sufficient capacity to allow this quiescent current to pass when the device

starts up.

REFERENCE DOCUMENTS

USER’S MANUAL USAGE OF THREE TERMINAL REGULATORS Document No.G12702E

INFORMATION VOLTAGE REGULATOR OF SMD Document No.G11872E

REVIEW OF QUALITY AND RELIABILITY HANDBOOK Document No.C12769E

SEMICONDUCTOR DEVICE MOUNT MANUAL http://www.necel.com/pkg/en/mount/index.html

<R>

PC2918, 2925, 2926

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