CM2596SCN263 CHAMP [Champion Microelectronic Corp.], CM2596SCN263 Datasheet

CM2596SCN263

Manufacturer Part Number

CM2596SCN263

Description

3A STEP DOWN VOLTAGE REGULATOR

Manufacturer

CHAMP [Champion Microelectronic Corp.]

Datasheet

1.CM2596SCN263.pdf (13 pages)

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GENERAL DESCRIPTION

The CM2596S series are step-down switching regulators with

all required active functions. It is capable of driving 3A load

with excellent line and load regulations. These devices are

available in fixed output voltages of 3.3V, 5V, and an

adjustable output version.

The CM2596S series offers a high-efficiency replacement for

popular three-terminal linear regulators. Also it requires a

minimum number of external components. It substantially not

only reduces the area of board size but also the size of the

heat sink, and in some cases no heat sink is required.

±4% tolerance on output voltage within specified input

voltages and output load conditions is guaranteed. Also, the

oscillator frequency accuracy is within ±15%. External

shutdown is included, featuring 150μA (typical) standby

current. The output switch includes cycle-by-cycle current

limiting, as well as thermal shutdown for full protection under

fault conditions.

APPLICATIONS

ORDERING INFORMATION

2006/11/27 Rev 1.0

LCD Monitors

ADD-ON Cards Switching Regulators

High Efficiency Step-Down Regulators

Efficient Pre-regulator for Linear Regulators

CM2596SGZJCN220

CM2596SGSCN220

CM2596SGCN220B

CM2596SZJCN220

CM2596SGCN220

CM2596SSCN220

CM2596SCN220

Blank: Normal

G: Lead Free package

TO-220

Lead Free

Package Type

Champion Microelectronic Corporation

CM2596S X X X X

C: Adjustable

SC: 3.3V

ZJC: 5V

Output Voltage

CM2596SGZJCN263

CM2596SGSCN263

CM2596SZJCN263

CM2596SGCN263

CM2596SSCN263

3A S

CM2596SCN263

FEATURES

TO-263

Guaranteed 3A output current

3.3V, 5V, and adjustable versions

Wide input voltage range, up to 40V

Internal oscillator of 150KHz fixed frequency

Wide adjustable version output voltage range, from

1.23V to 37V±4% max over line and load conditions

Low standby current, typ. 150μA, at shutdown mode

Requires only 4 external components

Thermal shutdown and current limit protection

Requires only 4 external components

Excellent line and load regulation specifications

TTL shutdown capability

TEP

N: TO package

OWN

Package Type

OLTAGE

Output Voltage

220:TO-220

263:TO-263

ADJ.

CM2596S

3.3V

5.0V

3.3V

5.0V

ADJ

Package

EGULATOR

Page 1

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CM2596SCN263 Summary of contents

Page 1

... Requires only 4 external components Thermal shutdown and current limit protection Requires only 4 external components Excellent line and load regulation specifications TTL shutdown capability Package Type TO-263 CM2596SSCN263 CM2596SZJCN263 CM2596SCN263 CM2596SGSCN263 CM2596SGZJCN263 CM2596SGCN263 CM2596S Output Voltage C: Adjustable SC: 3.3V ZJC: 5V Champion Microelectronic Corporation ...

Page 2

PIN CONFIGURATION TO-220 Top View ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) …….………………………………………….……. +45V POWER ENABLE Pin Input Voltage ….…………………………………. –0.3V ≦V≦25V Storage Temperature ………………………………….….…... -65℃ to +150℃ Lead Temperature (10 sec.) ……..……………………..….…………….... 260℃ Operating ...

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ELECTRICAL CHARACTERISTICS Electrical Characteristics 0mA, and T OUT Unless otherwise specified, Vin=12V for 3.3V,5V,adjustable version. I Parameter Device Output Voltage CM2596SS (Note 1) CM2596SZJ Output Voltage CM2596SS (Note 1) CM2596SZJ CM2596SS Output Voltage (Note 1) CM2596SZJ Feedback ...

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Note 1: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. Refer to Application Information for details. Note 2: The oscillator frequency reduces to approximately 11KHz in the event of fault ...

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APPLICATION CIRCUIT 2006/11/27 Rev 1 TEP Figure1. Fixed Output Voltage Figure2. Adjustable Output Voltage Champion Microelectronic Corporation CM2596S OWN OLTAGE Vout = Vref ( Vout ...

Page 6

TYPICAL CHARACTERISTICS 2006/11/27 Rev 1 TEP Champion Microelectronic Corporation CM2596S OWN OLTAGE EGULATOR Page 6 ...

Page 7

Rev 1 TEP Champion Microelectronic Corporation CM2596S OWN OLTAGE EGULATOR V =32V IN Page 7 ...

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APPLICATION INFORMATION External component selector Input Capacitors (Cin required that VIN must be bypassed with at least a 100uF electrolytic capacitor for stability. Also strongly recommended the capacitor’s leads must be short, wide and located near ...

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Output Voltage Ripple and Transients The output ripple voltage is due mainly to the inductor sawtooth ripple current multiplied by the ESR of the output capacitor. The output ripple voltage of a switching power supply will contain a sawtooth ripple ...

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Feedback Connection For fixed output voltage version, the FB (feedback) pin must be connected to V place the output voltage ratio resistors near CM2596S as possible in order to minimize the noise introduction. Enable It is required that the ENABLE ...

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PACKAGE DIMENSION 2006/11/27 Rev 1 TEP TO-220 (N220) Symbol F(Φ TO-220B (N220B) Champion Microelectronic Corporation CM2596S OWN OLTAGE EGULATOR Min（mm） Max（mm） 14.22 16.51 9.66 ...

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Rev 1 TEP TO-263 (N263) TO-263 (N263) Lead Position Overlay Champion Microelectronic Corporation CM2596S OWN OLTAGE Symbol Min（mm） Max（mm） A. 9.88 10.67 B 8.20 9.17 C 4.34 4. 1.40 E 0.31 0.53 ...

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Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing ...

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