NCV33163_05 ONSEMI [ON Semiconductor], NCV33163_05 Datasheet

NCV33163_05

Manufacturer Part Number

NCV33163_05

Description

2.5 A, Step−Up/Down/Inverting Switching Regulators

Manufacturer

ONSEMI [ON Semiconductor]

Datasheet

1.NCV33163_05.pdf (15 pages)

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NCV33163

2.5 A, Step−Up/Down/

Inverting Switching

Regulators

that contain the primary functions required for DC−to−DC converters.

This series is specifically designed to be incorporated in step−up,

step−down, and voltage−inverting applications with a minimum

number of external components.

comparators, temperature compensated reference, controlled duty

cycle oscillator, driver with bootstrap capability for increased

efficiency, and a high current output switch. Protective features consist

of cycle−by−cycle current limiting, and internal thermal shutdown.

Also included is a low voltage indicator output designed to interface

with microprocessor based systems.

package for improved thermal conduction.

Features

•

*For additional information on our Pb−Free strategy and soldering details, please

November, 2005 − Rev. 2

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

The NCV33163 series are monolithic power switching regulators

These devices consist of two high gain voltage feedback

These devices are contained in a 16 pin dual−in−line heat tab plastic

and Change Control

Output Switch Current in Excess of 2.0 A

Operation from 2.5 V to 60 V

Low Standby Current

Precision 2% Reference

Controlled Duty Cycle Oscillator

Driver with Bootstrap Capability for Increased Efficiency

Cycle−by−Cycle Current Limiting

Internal Thermal Shutdown Protection

Low Voltage Indicator Output for Direct Microprocessor Interface

Heat Tab Power Package

Moisture Sensitivity Level (MSL) Equals 1

Pb−Free Packages are Available*

NCV Prefix, for Automotive and Other Applications Requiring Site

Input

NCV33163P

NCV33163PG

NCV33163DWR2

NCV33163DWR2G SO−16WB

†For information on tape and reel specifications,

Voltage Feedback 2

Voltage Feedback 1

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Timing Capacitor

Device

LVI Output

ORDERING INFORMATION

WL = Wafer Lot

YY = Year

WW = Work Week

GND

Sense

PIN CONNECTIONS

http://onsemi.com

= Assembly Location

= Pb−Free Package

CASE 648C

DW SUFFIX

CASE 751G

SO−16WB

P SUFFIX

PDIP−16

SO−16WB 1000 Tape & Reel

(Pb−Free)

Package

PDIP−16

(Top View)

Publication Order Number:

1000 Tape & Reel

DIAGRAMS

Bootstrap Input

Driver Collector

MARKING

AWLYYWWG

25 Units / Rail

NCV33163DW

NCV33163P

AWLYYWWG

Switch

Emitter

GND

Switch Collector

Shipping

NCV33163/D

†

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NCV33163_05 Summary of contents

Page 1

NCV33163 2.5 A, Step−Up/Down/ Inverting Switching Regulators The NCV33163 series are monolithic power switching regulators that contain the primary functions required for DC−to−DC converters. This series is specifically designed to be incorporated in step−up, step−down, and voltage−inverting applications with a ...

Page 2

I Sense Timing Capacitor GND Voltage Feedback 1 Voltage Feedback 2 LVI Output MAXIMUM RATINGS (Note 1) Rating Power Supply Voltage Switch Collector Voltage Range Switch Emitter Voltage Range Switch Collector to Emitter Voltage Switch Current (Note ...

Page 3

ELECTRICAL CHARACTERISTICS T = −40°C to +115°C.) A Characteristic OSCILLATOR Frequency T = 25°C A Total Variation over and Temperature CC Charge Current Discharge Current Charge to Discharge Current Ratio Sawtooth Peak Voltage ...

Page 4

25° ∞ off DT ...

Page 5

Darlington Configuration V CC Emitter Sourcing Current to GND − 0.4 Pins Pins GND T = 25°C, (Note 2) A − 0.8 Bootstrapped, Pin ...

Page 6

V , SUPPLY VOLTAGE (V) CC Figure 14. Standby Supply Current versus Supply Voltage 3 620 pF T Pins 7 Pins GND 2.6 Pin ...

Page 7

− pk Sense + + Timing Capacitor 6 Oscillator C T Shutdown Thermal GND 4 Voltage Feedback Voltage Feedback ...

Page 8

INTRODUCTION The NCV33163 series are monolithic power switching regulators optimized for DC−to−DC converter applications. The combination of features in this series enables the system designer to directly implement step−up, step−down, and voltage−inverting converters with a minimum number of external components. ...

Page 9

The switch current is converted to a voltage by inserting a fractional ohm resistor series with V SC switch transistor Q . The voltage drop across R 2 monitored by the Current Sense comparator. If the voltage ...

Page 10

V 8 − 0.075 330 6 Oscillator C T 680 pF 5 Thermal − R LVI 1.25 V ...

Page 11

0.075 330 6 Oscillator C T 680 pF 5 Thermal Low Voltage + Indicator 1 + − Output R ...

Page 12

Current 0.25 V Limit 8 − 0.075 330 6 Oscillator C T 470 pF 5 Thermal − 1.25 V ...

Page 13

Calculation Step−Down V out ) sat * V out t off V (Notes off ƒ off 32.143 · 10 –6 ...

Page 14

16X 0.005 (0.13 16X 0. 14X NCV33163 PACKAGE DIMENSIONS PDIP−16 P SUFFIX CASE 648C−04 ISSUE ...

Page 15

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for ...

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