Datasheet TK70110MTL, TK70110MBX Datasheet (TOKO)

1

3

6

4

2

V

O

V

IN

GND

SHUT DOWN



TK701xx

1.0 V LOW DROPOUT LINEAR REGULATOR

FEATURES

■ Low Input Voltage Operation (Single Battery Cell)

■ Internal PNP Transistor

■ Built-In Shutdown Control (Off Current, 10 µ A Typ)

■ Low Dropout Voltage (30 mV Typ)

■ High Speed ON/OFF Transient, (15 µs Typ)

■ Very Small Surface Mount Package (SOT-25)

DESCRIPTION

The TK701xx is a very low dropout, low input voltage operation regulator suitable for single battery cell applications. This regulator provides 1.0 V output with a dropout voltage of only 30 mV. The active low control provides on/ off switching of the output. In the off mode, the standby supply current is 10 µA, thus extending battery life.

The TK701xx is available in a very small plastic surface mount package (SOT-25).

APPLICATIONS

■ Pagers

■ Personal Communication Equipment

■ Portable Consumer Equipment

■ Radio Control Systems

■ Single Battery Cell Systems

TK701xx

BLOCK DIAGRAM

ORDERING INFORMATION

6 4

IN

V

O

V

TK701 M

Tape/Reel Code

Voltage Code

VOLTAGE CODE

10 = 1.0 V

January, 1996 TOKO, Inc. Page 1

TAPE/REEL CODE

BX : Bulk/Bag TL : Tape Left

1-16-96

SHUT

DOWN

1

SHUT DOWN

BANDGAP

REFERENCE

+

-

2,3

GND

TK70110 BD

TK701xx

ABSOLUTE MAXIMUM RATINGS

Input Voltage..............................................................6 V

Power Dissipation ..............................................150 mW

Operating Voltage Range..............................0.9 to 5.0 V

Storage Temperature Range ...................-50 to +150 °C

Operating Temperature Range .....................0 to +80 °C

Lead Soldering Temp. (10 sec.)......................... 240 °C

Junction Temperature .......................................... 150 °C

Tk70110 ELECTRICAL CHARACTERISTICS

Test Conditions: VIN = 1.2 V, T

SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

I

IN

I

STBY

V

O

V

DROP

I

O

Supply Current IO = 0 mA, VIN = 1.2 V 190 µA Standby Current VIN = 1.2 V, Output off 10 µA Output Voltage 0.95 1.0 1.05 V Dropout Voltage IO = 2 mA 30 mV

Output Current 20 mA Line Reg Line Regulation VO + 1.2 V ≤ VIN ≤ 2.2 V 50 mV Load Reg Load Regulation

RR Ripple Rejection CL = 3.3 µF, 400 Hz 36 dB

= 25 °C, unless otherwise specified.

A

IO = 0 → 2 mA 2 10 mV IO = 0 → 10 mA 5 25 mV

∆VO/∆T

Output Voltage 0 ≤ TA ≤ 60 °C 0.05 dB

A

Temperature Dependency

Control Terminal Specification

I

CONT

V

CONT

Control Current V

Control Voltage

=1.0 V, RC = 0, Note 2 22 50 µA

CONT

Output On -.05 0.4 V Output Off 1.0 V

Note 1: Must be used within the power dissipation curve. Power dissipation is 350 mW when mounted as

recommended.

Note 2: Control current may be decreased by connecting a series resistor to control pin.

Page 2 January, 1996 TOKO, Inc.

1-16-96

TK701xx

ON/OFF CONTROL TERMINAL

I

(µA)

.0

QUIESCENT CURRENT vs.

I

(µA)

.0

RIPPLE REJECTION

Ripple Rejection (dB)

0

F

OUT

IN

SHORT CIRCUIT CURRENT

V

(V)

0

OUTPUT VOLTAGE vs.

0

V

(V)

NOISE SPECTRUM

NOISE (dB)

z

O

V

TEST CIRCUIT

I

IN A

V

IN

5 4

V

O

TK70110

V

IN

SD

+

SHUT

1 2

DOWN

TYPICAL PERFORMANCE CHARACTERISTICS

OUTPUT CURRENT

1.05

O

1.0

0.95 0102

I

(mA)

O

TA = 25 °C

1

+

C

L

GND

3

V

I

V

O

.1 µF

Rc

C

L

= 2. 2 µ

(SERIES RESISTOR RC)

1.0

0.8 TA = 25 °C

0.6

O

0.4

0.2

0

VIN = 1.2 V

VIN = 1.1 V

VIN = 1.0 V

50 10

IO (mA)

100

V

O

RC = 30 k

RC = 10 k

TA = 25 °C

RC = 0

RC = 10 k

RC = 20 kRC = 20 k

50

RC = 0

CONT

RC = 30 k

0

12

1.0 2

V

(V)

CONT

13

January, 1996 TOKO, Inc. Page 3

INPUT VOLTAGE

50

25

Q(OFF)

0

1.0 2

VIN (V)

TA = 25 °C

-50 IO = 3 mA

0

TA = 25 °C

CL = 1 µF

-100 10 µF

(SPECTRUM ANALYZER ONLY)

0

14

500 kHz 1 MH

FREQUENCY

1-16-96

15

-50

-100

.1 1

10 100

Frequency (kHz )

7

TK701xx

LINE TRANSIENT RESPONSE

1

OUTPUT (ON/OFF)

0

V

QUIESCENT CURRENT vs.

0

I

(mA)

OUTPUT VOLTAGE vs.

.8

V

(V)

INPUT CURRENT (NO LOAD) vs.

I

(µA)

4

5

OUTPUT VOLTAGE DRIFT vs.

0

V

(mV)

OUTPUT VOLTAGE vs.

V

(V)

3

LOAD TRANSIENT RESPONSE

V

OUTPUT VOLTAGE vs.

0

V

(V)

6

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

1.6

V

IN

1.2

.05

V

O

1.01

TK70110

1.05

O

1.0

TA = 25 °C

50 µ s/DIV

OUTPUT CURRENT

6.0

CONTROL RESPONSE

TA = 25 °C

I

O

SD

CL = 1 µF

0

TA = 25 °C

O

CL = 3.3 µF

1.05

O

1.01

8

1.0

0.5

O

50 µ s/DIV

OUTPUT CURRENT

TA = 25 °C

9

10 µs/DIV

1

SUPPLY VOLTAGE

1.2

1.0

O

TA = 25 °C

0.95 0102

INPUT VOLTAGE

500

IN

I

(mA)

O

T

= 25 °C

A

1

0

0102

I

(mA)

O

2

SUPPLY VOLTAGE

1.1

O

.96

IO = 5.0 mA

TA = 25 °C

0.7

1.0

0.8 1.5 1 VIN (V)

+25

TEMPERATURE

0

O

T

= 25 °C

A

IO = 2.5 mA

IO = 0 mA

0

12

034

V

(V)

IN

Page 4 January, 1996 TOKO, Inc.

0.91

0.9 1.0 1.

0.8 1.1 1.2 VIN (V)

1-16-96

5

-30

-50 10

050

TEMPERATURE (°C)

3

6

APPLICATION NOTES

D

G

V

RECOMMENDED MOUNTING

Optimum performance can only be achieved when the IC is mounted on a PC board according to the diagram below. This is because of the extremely small package and limited power dissipation. Shape the metal portion of the PCB as shown in the following drawing.

TK701xx

V

GN

O

ND

IN

ON/OFF or C

P

Use a large bypass capacitor and connect it in a place near GND of the IC. Pay attention to temperature characteristics of the capacitor, especially the increase of ESR and decrease of capacitance in low temperatures. Oscillation, reduction of ripple rejection and increased noise may occur in some cases if the proper capacitor is not used. An output capacitor more than 1.0 µF is required to maintain stability. The standard test condition is 3.3 µF (TA = 25 °C).

DROPOUT VOLTAGE

Dropout voltage is the voltage difference between the input voltage and the output voltage where the output voltage decreases to 100 mV below the nominal output voltage as the input voltage is decreased.

To measure dropout voltage, set the input voltage to the nominal output voltage +1 V and measure the output voltage. Reduce the input voltage to the point where the output is 100 mV below the previously measured value. The dropout voltage is the difference between the input and output voltage at this point. This voltage depends on the load current and ambient temperature.

January, 1996 TOKO, Inc. Page 5

1-16-96

TK701xx

()

PACKAGE OUTLINE

SOT-25

Marking  Information

5 4

2 31

e

0.950.95

(1.9)

±

0.2

2.9

0.4

(0.6)(0.6)

-0.3

+0.2

1.6

±

0.1

1.3max

M

0.1 ±

1.1

0 ~0.1

1.0

Recommended Mount Pad

0.8

Marking Information

TK70110 K10

0.7

e

0.95

2.6

1

e

0.95

e'

1.90

-0.05

+0.1

0.16

+0.2

-0.3

2.8

Unit:mm

The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.



YOUR LOCAL REPRESENTATIVE IS:

TOKO America, Inc. 1250 Feehanville Dr. Mt. Prospect, IL 60056 Tel: 1(800) PIK-TOKO Fax: 1(847) 699-1194

Page 6 January, 1996 TOKO, Inc.

Please order by literature number:

1-16-96

IC-135-TK70110

Printed in U.S.A.