Texas Instruments PT6671B, PT6671D, PT6671E, PT6671F, PT6671G Datasheet

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ADVANCED INFORMATION - AVAILABLE 3Q98

P T 6 6 7 0

S e r i e s

3.3V INPUT 20W BOOST

Revised 11/18/98

INTEGRATED SWITCHING REGULATOR

• Input Voltage Range: 3.0 to 3.6V

The PT6670 series is a new addition

•

Adjustable Output Voltage

to the Power Trends high performance

•

85% Efficiency

family of 14-Pin SIP (Single In-line

•

Remote Sense Capability

Package) Integrated Switching Regula-

•

Soft Start

tors (ISRs), designed for 3.3V bus

applications needing 5 to 12 volts for

auxilliary circuits at up to 20W of

output power.

Pin-Out Information

Ordering Information

PT Series Suffix (PT1234X)

Pin Function

PT6671¨ = +5.0 Volts

Case/Pin

Heat

1

Remote Sense

PT6672¨ = +9.0 Volts

Configuration

Spreader

P

PT6673¨ = +12.0 Volts

Vertical Through-Hole

2

Do not connect

HorizontalThrough-Hole

D

Standard Application

3

Do not connect

E

4

Vin

Horizontal Surface Mount

VOAdjust

5

Vin

REMOTE SENSE

6

Vin

14

1

7

GND

VIN

4,5,6

PT6670

11,12,13

VOUT

8

GND

9

GND

+

+

10

GND

7,8,9,10

C1

C2

LOAD

Pkg Style 400

11

Vout

GND

GND

12

Vout

Note: Back surface

13

Vout

of product is

PT6670

C1 = Required 560µF electrolytic

14

Vout Adjust

conducting metal.

C2 = Required 560µF electrolytic

Preliminary Specifications

Characteristics

PT6670 SERIES

(Ta = 25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

Output Current

Io

Ta = 60°C, 200 LFM, pkg P

0.1

—

TBD

A

Ta = 25°C, natural convection Vo= +5V

0.1

—

4.0

A

Vo= +9V

0.1

—

2.2

A

Vo= +12V

0.1

—

1.7

A

Input Voltage Range

Vin

Over Vo and Io range

3.0

—

3.6

V

Inrush Current

Iir

On start-up

—

—

TBD

A

Output Voltage Tolerance

Vo

Vin = +3.3V, Io = Iomax

—

1.5

—

%Vo

Ta = 0°C to 65°C

Output Voltage Adjust Range	Voadj	Pin 14 to Vo or ground	Vo= +5V
			Vo= +9V
			Vo= +12V

—TBD —

—	TBD	—	V
—	TBD	—

Line Regulation	Regline	Over Vin range, Io = Iomax		—	±0.25	±0.5	%Vo
Load Regulation	Regload	Vin = +3.3V, 0.1 ≤ Io ≤ Iomax		—	±0.25	±0.5	%Vo
Vo Ripple/Noise	Vn	Vin = +3.3V, Io = Iomax		—	3	—	%Vo
Transient Response	ttr	Io step between ½Iomax and Iomax		—	500	—	µSec
with C1= C2= 560µF	Vos	Vo over/undershoot		—	5	—	%Vo
Efficiency	h	Vin = +3.3V, Io = ½Iomax	Vo = +5V	—	87	—	%
			Vo = +9V	—	86	—	%
			Vo = +12V	—	87	—	%
		Vin = +3.3V, Io = Iomax	Vo = +5V	—	84	—	%
			Vo = +9V	—	80	—	%
			Vo = +12V	—	82	—	%

Note: The PT6670 Series requires two 560µF electrolytic capacitors (input and output) for proper operation in all applications. Please note that this product does not include short circuit protection.

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com