Microsemi Corporation LX8386A-00CP, LX8386A-00CDD, LX8386-33CP, LX8386-33CDD, LX8386-00IP Datasheet

A

LIN DOC #:

8386

LX8386-xx/8386A-xx/8386B-xx

1.5A LOW D

T HE I NFINITE P OWER OF I NNOVATION

DESCRIPTION KEY FEATURES

The LX8386/86A/86B series ICs are
positive regulators designed to provide

1.5A output current. These regulators
yield higher efficiency than currently
available devices with all internal
circuitry designed to operate down to a
1V input-to-output differential. In this
product, the dropout voltage is fully
specified as a function of load current.
Dropout is guaranteed at a maximum of

1.3V (LX8386A/86B) and 1.5V (LX8386)
at maximum output current, decreasing
at lower load currents. On-chip
trimming adjusts the reference voltage
to 1% (0.8% for the 8386B) initial
accuracy and 2% (1% for the 8386B)
over line, load and temperature.

The LX8386/86A/86B series devices

NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.

PRODUCT HIGHLIGHT

are pin-compatible with earlier 3­terminal regulators, such as 117 series
products. While a 10µF output capacitor
is required on both input and output of
these new devices, this capacitor is
generally included in most regulator
designs.

The LX8386/86A/86B series quiescent
current flows into the load, increasing
efficiency. This feature contrasts with
PNP regulators, where up to 10% of the
output current is wasted as quiescent
current. The LX8386-xxI is specified
over the full industrial temperature
range of -25°C to +125°C and the
LX8386/86A/86B-xxC is specified over
the commercial range of 0°C to +125°C.

ROPOUT POSITIVE REGULATORS

P RODUCTION DATA SHEET

■■

■ Three-Terminal Adjustable or Fixed

■■

Output

■■

■ Guaranteed <1.3V Headroom

■■

at 1.5A (LX8386A/86B)

■■

■ Output Current of 1.5A Minimum

■■

■■

■ Operates Down to 1V Dropout

■■

p 0.015% Line Regulation
p 0.1% Load Regulation

■ Evaluation Board Available:

Request LXE9001 EVALUATION KIT

APPLICATIONS

■ High Efficiency Linear Regulators

■ Post Regulators For Switching Power

Supplies

■ Battery Chargers

■ Constant Current Regulators

■ ASIC & Low Voltage IC Supplies

■ Memory Cards

■ Graphics & Sound Chipsets

3.3V, 1.5A REGULATOR

AVAILABLE OPTIONS PER PART #

Part #

5V

1500µF

6MV1500GX

IN

LX8386

ADJ

OUT

121Ω
1%

200

3.3V at 1.5

1500µF, 6.3V
6MV1500GX
from Sanyo

LX8386/86A/86B-00 Adjustable
LX8386/86A/86B-33 3.3V

Other voltage options may be available —

Please contact factory for details.

Ω

1%

PACKAGE ORDER INFORMATION

(°C)

T

A

0 to 1252.0%1.3VLX8386A-xxCPLX8386A-xxCDDLX8386A-xxCDT

-25 to 1252.0%1.5VLX8386-xxIPLX8386-xxIDD—

Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number. (i.e. LX8386A-xxCDDT)

Max. Ref.
Accuracy

2.0%1.5VLX8386-xxCPLX8386-xxCDDLX8386-xxCDT

1.0%1.3VLX8386B-xxCPLX8386B-xxCDDLX8386B-xxCDT

Max. Dropout

Voltage

"xx" refers to output voltage, please see table above.

Plastic TO-220

P

3-pin

Plastic TO-263

DD

3-pin

Plastic T0-252

DT

(D-Pak) 3-pin

Output

Voltage

Copyright © 1999

Rev. 1.7a 10/00

11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: [phone]

L INF INITY MICROELECTRONICS INC.

1

PRODUCT DATABOOK 1996/1997

T

A

LX8386-xx/8386A-xx/8386B-xx

1.5A LOW D

RODUCTION DATA SHEET

P

ROPOUT POSITIVE REGULATORS

ABSOLUTE MAXIMUM RATINGS (Note 1)

Power Dissipation .................................................................................. Internally Limited

Input Voltage................................................................................................................ 10V

Input to Output Voltage Differential ........................................................................... 10V

Maximum Output Current .......................................................................................... 1.5A

Operating Junction Temperature

Plastic (P, DD & DT Packages) ............................................................................ 150°C

Storage Temperature Range ...................................................................... -65°C to 150°C

Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C

Note 1. Exceeding these ratings could cause damage to the device. All voltages are with

respect to Ground. Currents are positive into, negative out of the specified terminal.

THERMAL DATA

P PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

DD PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

DT PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

Junction Temperature Calculation: TJ = TA + (P
The θ

numbers are guidelines for the thermal performance of the device/pc-board system. All

JA

of the above assume no ambient airflow.

* θ

can be improved with package soldered to 0.5IN2 copper area over backside ground

JA

plane or internal power plane. θ
mounting technique.

can vary from 20ºC/W to > 40ºC/W depending on

JA

θθ

θ

θθ

JT

θθ

θ

θθ

JA

θθ

θ

θθ

JT

θθ

θ

θθ

JA

θθ

θ

θθ

JT

θθ

θ

θθ

JA

x θ

).

D

JA

3.0°C/W

60°C/W

3.0°C/W

*60°C/W

9°C/W

*80°C/W

PACKAGE PIN OUTS

TAB IS V

OUT

3

2

1

P PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

TAB IS V

OUT

3

2

1

DD PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

TAB IS V

OUT

DT PACKAGE (D-Pak)

(Top View)

* Pin 1 is GND for fixed voltage versions.

V

IN

V

OUT

ADJ / GND*

V

IN

V

OUT

ADJ / GND*

3. V

IN

2. V

OUT

1. ADJ / GND*

BLOCK DIAGRAM

V

IN

Bias

Circuit

Thermal

Limit Circuit

Bandgap

Circuit

Control

Circuit

DJ or

GND*

* This pin GND for fixed voltage versions.

2

Output

Circuit

SOA Protection

Circuit

Current

Limit Circuit

V

OU

Copyright © 1999

Rev. 1.7a 10/00

PRODUCT DATABOOK 1996/1997

LX8386-xx/8386A-xx/8386B-xx

1.5A LOW D

ROPOUT POSITIVE REGULATORS

P RODUCTION DATA SHEET

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8386/86A/86B-xxC with 0°C ≤ TA ≤ 125°C,
and the LX8386-xxI with -25°C ≤ TA ≤ 125°C; V
and case temperatures equal to the ambient temperature.)

LX8386/86A/86B-00 (Adjustable)

Parameter

Reference Voltage LX8386/86A-00 V

(Note 4) 10mA ≤ I

LX8386B-00 I

Line Regulation (Note 2) ∆V
Load Regulation (Note 2) ∆V

Thermal Regulation
Ripple Rejection (Note 3) V

Adjust Pin Current I

Adjust Pin Current Change (Note 4) ∆I
Dropout Voltage LX8386-00 ∆V ∆V

LX8386A/86B-00

Minimum Load Current I
Maximum Output Current I

Temperature Stability (Note 3) ∆V
Long Term Stability (Note 3) ∆V

RMS Output Noise (% of V

) (Note 3) V

OUT

- V

= 3V; I

IN

OUT

OUT

Symbol

REFIOUT

REF(VIN

REF(IOUT)VIN

∆V

(Pwr)

OUT

ADJ

ADJ

OUT (MIN)VIN

OUT (MAX)(VIN

OUT

OUT

OUT (RMS)TA

= 10mA, TA = 25°C

OUT

= 10mA, TA = 25°C

OUT

10mA ≤ I

) 1.5V ≤ (V

OUT

IN

- V

= 3V, 10mA ≤ I

OUT

- V

TA = 25°C, 20ms pulse

= 5V, f =120Hz, C

OUT

C

= 10µF, I

ADJ

10mA ≤ I

∆V

= 1%, I

REF

= 1%, I

REF

OUT

≤ 10V

- V

) ≤ 7V

OUT

(T)
(t) TA = 125°C, 1000 hours

= 25°C, 10Hz ≤ f ≤ 10kHz

= 1.5A. Low duty cycle pulse testing techniques are used which maintains junction

Test Conditions Units

LX8386/86A/86B-00

Min. Typ. Max.

1.238 1.250 1.262 V

≤ I

OUT (MAX)

, 1.5V ≤ (V

- V

), V

OUT

≤ 10V, P ≤ P

IN

MAX

IN

1.225 1.250 1.270 V

1.240 1.250 1.260 V

≤ I

OUT (MAX)

) ≤ 7V, I

OUT

, 1.5V ≤ (V

= 10mA

OUT

≤ 1.5A

OUT

- V

), V

OUT

≤ 10V, P ≤ P

IN

MAX

IN

1.238 1.250 1.262 V

0.015 0.2 %

0.15 0.4 %

0.01 0.04 %/W

65 83 dB

OUT

= 100µf Tantalum, VIN = 6.5V

OUT

= 1.5A

55 100 µA

≤ I

OUT

OUT

OUT (MAX)

= 1.5A

= 1.5A

, 1.5V ≤ (V

- V

), V

OUT

≤ 10V

IN

IN

0.2 5 µA

1.2 1.5 V

1.1 1.3 V

210mA

1.5 2.0 A

0.25 %

0.3 1 %

0.003 %

LX8386/86A/86B-33 (3.3V Fixed)

Parameter

Output Voltage LX8386-33 V

(Note 4) 4.75V ≤ VIN ≤ 10V, 0mA ≤ I

LX8386A/86B-33

Line Regulation (Note 2) ∆V

Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3) C

Quiescent Current I

Dropout Voltage LX8386-33 ∆V ∆V

LX8386A/86B-33

Maximum Output Current I

Temperature Stability (Note 3) ∆V
Long Term Stability (Note 3) ∆V

RMS Output Noise (% of V

) (Note 3) V

OUT

Symbol

OUTVIN

(VIN)

∆V

OUT(IOUT

∆V

OUT

OUT (MAX)VIN

OUT

OUT

OUT (RMS)TA

= 5V, I

OUT

VIN = 5V, I

OUT

4.75V ≤ VIN ≤ 10V, 0mA ≤ I

4.75V ≤ VIN ≤ 7V

OUT

4.75V ≤ VIN ≤ 10V

)

V

= 5V, 0mA ≤ I

IN

(Pwr)

TA = 25°C, 20ms pulse

= 100µF (Tantalum), I

OUT

0mA ≤ I

Q

∆V

= 1%, I

OUT

= 1%, I

OUT

OUT

≤ 7V

(T)

(t) TA = 125°C, 1000 hours

= 25°C, 10Hz ≤ f ≤ 10kHz

Test Conditions Units

= 0mA, TA = 25°C

= 0mA, TA = 25°C

≤ I

OUT

OUT (MAX)

≤ I

, 4.75V ≤ VIN ≤ 10V

OUT (MAX)

≤ I

OUT

OUT (MAX)

≤ I

OUT

OUT (MAX)

≤ 1.5A, P ≤ P

OUT

≤ 1.5A, P ≤ P

OUT

= 1.5A

OUT

MAX

MAX

Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to

heating effects are covered under the specification for thermal regulation.
Note 3. These parameters, although guaranteed, are not tested in production.
Note 4. See Maximum Output Current Section above.

LX8386/86A/86B-33
Min. Typ. Max.

3.267 3.30 3.333 V

3.235 3.30 3.365 V

3.274 3.30 3.326 V

3.267 3.30 3.333 V

16mV
210mV
515mV

0.01 0.02 % / W

60 83 dB

410mA

1.2 1.5 V

1.1 1.3 V

1.5 2.0 A

0.25 %

0.3 1 %

0.003 %

Copyright © 1999

Rev. 1.7a 10/00

3