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PT5820 Series

16-A 12-V Input Adjustable

Integrated Switching Regulator

SLTS172

(Released 8/23/2002)

Standard Application

= Required 560µF

Ordering Information

PT5827

H = 5.0 Volts

PT5821

H = 3.3 Volts

PT5822

H = 2.5 Volts

PT5823

H = 1.8 Volts

PT5824

H = 1.5 Volts

PT5825

H = 1.2 Volts

PT5826

H = 1.0 Volts

Pin

Function

2

Inhibit *

3

Margin Down

4

Margin Up

8

Sense(–)

9

GND

10

GND

11

GND

12

GND

13

GND

14

15

16

17

18

Sense(+)

Features

Pin-Out Information

* For Inhibit pin:

Open = output enabled

Ground = output disabled

Description

The PT5820 Excalibur™ series of integrated

switching regulators (ISRs) combines outstand-

ing power density with a comprehensive list of

features. They are an ideal choice for applications

where board space is a premium and performance

cannot be compromised. These modules provide

a full 16A of output current, yet are housed in a

low-profile, 18-pin, package. The integral copper

case construction requires no heatsink, and offers

the advantages of solderability and a small foot-

print (0.736 in² for suffix ‘N’). Both through-hole

and surface mount pin configurations are available.

The PT5820 series operates from a 12-V input

bus and provides a convenient point-of-load power

source for the industry’s latest high-performance

DSPs and microprocessors. The series includes

output voltage options as low as 1.0VDC.

Other features include external output voltage

adjustment, a ±5% margin control, on/off enable,

short circuit protection, and thermal shutdown. A

560-µF input capacitor and 330µF output capacitor

are required for proper operation.

Case/Pin

Order

Package

Configuration

Suffix

Code

Vertical

N

(EPP)

Horizontal

A

(EPQ)

SMD

C

(EPS)

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)

(0.736 in², Suffix ‘N’)

PT5820

V

Margin Up

Margin Down

V

IN

9–13

4

118

14–17

5, 6, 7

8

2

L

O

A

D

C

IN

560µF

(Required)

C

OUT

330µF

(Required)

Inhibit

GND

GND

V

OUT

3

Sense(+)

Sense(–)