Zetex ZXCL250E5, ZXCL250H5, ZXCL260E5, ZXCL1250H5, ZXCL1260H5 Datasheet

ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

ULTRA SMALL MICROPOWER SC70 LOW DROPOUT REGULATORS

DESCRIPTION

The ZXCL series are very small low dropout regulators designed for use in low power and severely space limited applications.

The devices operate with a low dropout voltage, typically of only 85mV at 50mA load. Supply current is minimised with a ground pin current of only 50µA at full 150mA load. Logic control allows the devices to be shut down, consuming typically less than 10nA. These features make the device ideal for battery powered applications where power economy is critical.

The parts have been designed with space sensitive systems in mind. They are available in the ultra small SC70 package, which is half the size of other SOT23 based regulator devices.

For applications requiring improved performance over alternative devices, the ZXCL is also offered in the 5 pin SOT23 package with an industry standard pinout.

The devices feature thermal overload and over-current protection and are available with output voltages of 2.5V, 2.6V, 2.8V, 3V, 3.3V and 4V. Other voltage options between 1.5V and 4V can be provided. Contact Zetex marketing for further information.

The ZXCL series are manufactured using CMOS processing, however advanced design techniques mean that output noise is improved even when compared to other bipolar devices.

FEATURES

5-pin SC70 package for the ultimate in space

•

saving

5-pin SOT23 industry standard pinout

•

Low 85mV dropout at 50mA load

•

50µA ground pin current with full 150mA load

•

Typically less than 10nA ground pin current on shutdown

•

2.5, 2.6, 2.8, 3, 3.3 and 4 volts output

•

Very low noise, without bypass capacitor

•

Thermal overload and over-current protection

•

-40 to +85°C operating temperature range

PACKAGE FOOTPRINT

Total Aea

2.1mm x 2mm =4.2mm

Total Aea

2.8mm x 2.9mm =8.12mm

2

APPLICATIONS

Cellular and Cordless phones

•

Palmtop and laptop computers

•

• PDA

•

Hand held instruments

•

Camera, Camcorder, Personal Stereo

•

PCMCIA cards

•

Portable and Battery-powered equipment

TYPICAL APPLICATION CIRCUIT

Battery Supply

ZXCL

Output Voltage

ISSUE 5 - NOVEMBER 2001

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ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

ABSOLUTE MAXIMUM RATINGS

Terminal Voltage with respect to GND V

IN

E

N

V

O

Package Power Dissipation (T SC70 300mW (Note 1)

SOT23-5 450mW (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

V

= VO+ 0.5V, typical values at TA = 25 C V (Unless otherwise stated)

IN

SYMBOL PARAMETER CONDITIONS LIMITS UNITS

-0.3V to 7.0V

-0.3V to 10V

-0.3V to 5.5V

=25°C)

A

Output short circuit duration Infinite Continuous Power Dissipation Internally limited Operating Temperature Range -40°C to +85°C Storage Temperature Range -55°C to +125°C

MIN TYP MAX

V

IN

V

O

∆V

O

I

O(MAX)

I

OLIM

I

Q

Input Voltage (note2) 5.5 V

I

Output Voltage

/∆T

Temperature Coefficient

Output Current

Over Current Limit

Ground pin current

=1mA

O

ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

= 100mA

I

O

+0.5V<VIN<VINmax.

V

O

ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

ZXCL250 only

ZXCL250 only No Load

= 150mA,

I

O

= 100mA,

I

O

2.450

2.548

2.744

2.940

3.234

3.920

2.425

2.522

2.744

2.910

3.201

3.880

150 100

160 105

2.5

2.6

2.8

3.0

3.3

4.0

-15 ppm/°C

230

25 50 40

ISSUE 5 - NOVEMBER 2001

2.550

2.652

2.856

3.060

3.366

4.080

2.575

2.678

2.884

3.090

3.399

4.120

800 750

50 120 100

V

mA

␮A ␮A ␮A

2

ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

ELECTRICAL CHARACTERISTICS V

= VO+ 0.5V, typical values at TA=25°C (Unless otherwise stated)

IN

SYMBOL PARAMETER CONDITIONS LIMITS UNITS

MIN TYP MAX

V

⌬V

E

V

I

T

DO

N

ENH

ENL

ENHS

EN

QSD

SD

LNR

LDR

Dropout Voltage Note 3

Line Regulation VIN=(VO+0.5V) to 5.5V, IO=1mA 0.02 0.1 %/V

Load Regulation IO=1mA to 100mA 0.01 0.04 %/mA

Output Noise Voltage

Enable pin voltage for normal operation

Enable pin voltage for output shutdown

Enable pin hysteresis 150 mV

Enable Pin input current

Shutdown supply current

Thermal Shutdown Temperature

ZXCL250

I

=10mA

O

I

=50mA

O

I

=100mA

O

ZXCL260

I

=10mA

O

I

=50mA

O

I

=100mA

O

ZXCL280

I

=10mA

O

I

=50mA

O

I

=100mA

O

ZXCL300

I

=10mA

O

I

=50mA

O

I

=100mA

O

ZXCL330

I

=10mA

O

I

=50mA

O

I

=100mA

O

ZXCL400

=10mA

I

O

I

=50mA

O

I

=100mA

O

f=10Hz to 100kHz, C

T

= -40°C

A

=10µF,

O

2

2.2

15 85 163

15 85 155

15 85 140

50

325

mV

310

mV

280

mV

280

mV

280

mV

280

µV rms

10 V

00.8V

VEN=5.5V 100 nA

VEN=0V 1

µA

125 165 °C

Device testing is performed at TA=25⬚C. Device thermal performance is guaranteed by design. Note1: Maximum power dissipation is calculated assuming the device is mounted on a PCB measuring 2

inches square Note 2: Output Voltage will start to rise when V

operation, V Note 3: Dropout voltage is defined as the difference between V

(min) > V

IN

(nom) + 0.5V.

OUT

exceeds a value or approximately 1.3V. For normal

IN

and VO, when VOhas dropped 100mV below

IN

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ZXCL250 ZXCL260 ZXCL280 ZXCL300 ZXCL330 ZXCL400

TYPICAL CHARACTERISTICS (ZXCL280 shown)

6

5

4

V

3

2

Voltage (V)

1

0

0123456

I

OUT

IN

=100mA

=1mA

Input Voltage (V)

Input to Output Characteristics

2.81

VIN=3.3V No Load

2.80

Output Voltage (V)

2.79

-50 -25 0 25 50 75 100

Temperature (°C)

Output Voltage v Temperature

0.25

0.20

0.15

0.10

0.05

Dropout Voltage (V)

0.00 0 25 50 75 100 125 150 175

Output Current (mA)

Dropout Voltage v Output Current

25.0

VIN=3.3V

24.8

No Load

24.6

24.4

24.2

24.0

23.8

23.6

23.4

Ground Current (µA)

23.2

23.0

-50 -25 0 25 50 75 100

Temperature (°C)

Ground Current v Temperature

30

No Load

25

20

15

10

5

Ground Current (µA)

0

012345

Input Voltage (V)

Ground Current v Input Voltage

60

55

50

45

40

35

30

Ground Current (µA)

25

20

0 25 50 75 100 125 150

VIN=5V

VIN=3.3V

Load Current (mA)

Ground Current v Load Current

ISSUE 5 - NOVEMBER 2001

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