August. 2002

(Rev.0)

- 1 -

IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

The IP1520 is a dual output voltage series regulator
which can provide up to 600mA of output current.
The IP1520 consists of 1-fixed 3.3V and 1-fixed 2.55V
regulators.

- 1-Fixed 3.3V Regulator with Internal NPN TR.
- 1-Fixed 2.55V Regulator with Internal NPN TR.
- Built-in TSD circuit.
- Built-in Current Limit Circuit.
- Built-in ON/OFF Control Circuit.
- Built-in Over Voltage Protection Circuit.
- Output Trimmed to +/-3% Tolerance

DESCRIPTION

FEATURES

Device

Package

Operating Temp

IP1520

14SOPH-8L

-35

C ~ +85

ORDERING INFORMATION

14SOPH-8L

BLOCK DIAGRAM

N/C

VIN

VOUT1

ON/OFF

PGND

VOUT2

N/C

PGND

Vref

ON/OFF

Control SW

TSD

OVP

OCL

N/C

SHUT

DOWN

August. 2002

(Rev.0)

- 2 -

IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

PIN DESCRIPTIONS

SYMBOL

I/O

DESCRIPTION

VIN

Input Supply Voltage

VOUT1

Reg +3.3V Output

N/C

No Connection

ON/OFF

ON/OFF Control

VOUT2

Reg +2.55V Output

N/C

No Connection

N/C

No Connection

PGND

Power Ground

PIN CONNECTIONS

N/C

VIN

VOUT1

ON/OFF

PGND

VOUT2

N/C

PGND

N/C

IP1520

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

CHARACTERISTICS

SYMBOL

VALUE

UNIT

Maximum supply voltage

Vinmax

ON/OFF voltage

Vonoff

Power dissipation

3.5*

Operating temperature

Topr

-35 ~ +85

Storage temperature

Tstr

-55 ~ +150

Maximum output current

Iomax

700

Note>
1. When mounted on 100mm X 100mm X 1mm PCB (Phenolic resin material).
2. Power dissipation reduces 28mW/

C for using above Ta=25

3. Do not exceed Pd and SOA.

POWER DISSIPATION CURVE

Power Dissipation (W)

Ambient Temperature (�C)

25 50 75 100 125 150 175

RECOMMENDED OPERATING CONDITIONS

CHARACTERISTICS

SYMBOL

VALUE

UNIT

Supply voltage

Vcc

4.5 ~ 6.0

Input voltage

Vin

4.5 ~ 6.0

SOA

ABSOLUTE MAXIMUM RATINGS(TA=25

August. 2002

(Rev.0)

- 4 -

IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS

Characteristics

Symbol

Condition

Min.

Typ.

Max.

Units

Quiescent current

Icc

Vcc=5.25V, No-Load

OVP Detecting
Voltage

Vovp

Vcc=Variable

6.5

3.3V REGULATOR PART

Output Voltage

Vout1

Io=10mA

3.2

3.3

3.4

Line Regulation

dVline1 Vin=4.5~6V, Io=10mA

0.035

0.2

Load Regulation

dVload 1 Vin=5.25V, 10mA < Io < 500mA

0.4

0.8

Dropout voltage

Vdrop1

Io=500mA

1.1

1.3

Ripple rejection

RR1

F=120Hz, Co=10uF Tantalum
(Vin-Vout)=3V, Io=200mA

Current limit

*Note

Ilimit1

Vin-Vout=2.5V

550

Temperature
stability

Temp1

0.5

2.55V REGULATOR PART

Output Voltage

Vout2

Io=10mA

2.473

2.55

2.626

Line Regulation

dVline2 Vin=4.5~6V, Io=10mA

0.035

0.2

Load Regulation

dVload2

Vin=5.25V, 10mA < Io < 300mA

0.4

0.8

Dropout voltage

Vdrop2

Io=300mA

1.7

2.1

Ripple rejection

RR2

F=120Hz, Co=10uF Tantalum
(Vin-Vout)=3V, Io=100mA

Current limit

*Note

Ilimit2

Vin-Vout=3.0V

500

Temperature
stability

Temp2

0.5

Output noise
voltage 1

Vn1

Io=300mA

100

Output noise
voltage 2

Vn2

Io=150mA

100

( Vin= 5.25V, Co=10uF, Ta = 25

C, unless otherwise specified.)

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS (Continued)

( Vin= 5.25V, Co=10uF, Ta = 25

C, unless otherwise specified.)

Parameter

Symbol

Condition

Min.

Typ.

Max.

Units

ON/OFF CONTROL PART

On voltage

Von

Vout=Enabled

0.8

Off voltage

Voff

Vout=Disabled

2.0

* Note
Don't exceed following current limit.
( Iout1 : 550 mA, Iout2 : 500 mA )

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

APPLICATION SUMMARY

- ON / OFF
When you want to control output of the IP1520, use pin #4 as follows

Pin#4

IP1520

HIGH

off

LOW

on/off function

As shown in figure
Pin#4 is positive input of the comparator,
and the other Input is threshold voltage.
If the voltage of the pin#4 rises above threshold voltage,
then TR Q1 will be saturated and the main bias current
will be shut down.

Pin#4

Vth

Main

bias

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS CURVES

VCC vs ICC

Icc (mA)

Vcc (V)

-50

100

150

1.630

1.635

1.640

1.645

1.650

1.655

1.660

1.665

1.670

VREF TEMPERTURE STABILITY

VREF (V)

TEMP (

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS CURVES (Continued)

100

200

300

400

500

600

700

800

0.6

0.8

1.0

1.2

1.4

ILoad1 vs Vdrop1

Dropout Voltage1 (V)

Output Current1 (mA)

200

400

600

800

1.2

1.4

1.6

1.8

2.0

ILoad2 vs Vdrop2

Dropout Voltage2 (V)

Output Current2 (mA)

August. 2002

(Rev.0)

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IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS CURVES (Continued)

200

400

600

800

1000

1200

3.20

3.25

3.30

3.35

3.40

VOUT1 Load Regulation (Tj=25

Output Voltage1 (V)

Output Current1 (mA)

200

400

600

800

1000

1200

2.48

2.50

2.52

2.54

2.56

2.58

VOUT2 Load Regulation (Tj=25

Output Voltage (V)

Output Current (mA)

August. 2002

(Rev.0)

- 13 -

IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

ELECTRICAL CHARACTERISTICS CURVES (Continued)

100

-300

-200

-100

100

200

Io=50mA

Io=450mA

VOUT1 Load Transient Response

Output Voltage Deviation (mV)

Time (usec)

100

-300

-200

-100

100

200

Io=50mA

Io=350mA

VOUT2 Load Transient Response

Output Voltage Deviation (mV)

Time (usec)

August. 2002

(Rev.0)

- 14 -

IP1520

DUAL OUTPUT VOLTAGE SERIES REGULATOR

WWW.INTERPIONSEMI.COM

PACKAGE DIMENSION

14SOPH-8L

6.00

0.30

(0.236

0.012)

3.95

0.2

(0.156

0.008)

5.72

(0.225)

0.60

0.20

(0.024

0.008)

0.20

+0.10

-0.05

(0.008,+0.004,-0.002)

0~8

0.47

(0.019)

0.406

+0.10

-0.05

(0.008,+0.004,-0.002)

1.27TYP

(0.050TYP)

1.80MAX

(0.071MAX)

MIN0.05

(MIN0.002)

1.55

0.10

(0.061

0.004)

2.946

4.216

8.56

0.20

(

0.347

0.008

)

8.70MAX

(0.343MAX)

Электронный компонент: IP1520