CM2593-3.3V CHAMP [Champion Microelectronic Corp.], CM2593-3.3V Datasheet

CM2593-3.3V

Manufacturer Part Number

CM2593-3.3V

Description

2A Step Down VOLTAGE REGULATOR

Manufacturer

CHAMP [Champion Microelectronic Corp.]

Datasheet

1.CM2593-3.3V.pdf (12 pages)

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GENERAL DESCRIPTION

The CM2593/P is a monolithic integrated circuit that

provide all the active functions for a step-down

switching regulator, capable of driving a 2A load

without additional transistor component. Requiring a

minimum number of external component, the board

space can be saved easily. The external shutdown

function can be controlled by TTL logic level and

then come into standby mode. The internal

compensation makes feedback control have good

line and load regulation without external design.

Regarding protected function, thermal shutdown is

to prevent over temperature operating from damage,

and current limit is against over current operating of

the output switch. The CM2593/P operates at a

switching frequency of 150Khz thus allowing smaller

sized filter components than what would be needed

with lower frequency switching regulators. Other

features include a guaranteed +4% tolerance on

output voltage under specified input voltage and

output load conditions, and +15% on the oscillator

frequency. The output version included fixed 3.3V,

5V, and an adjustable type. The packages are

available in a standard 8-lead SOP8.

TYPICAL APPLICATIONS

2007/01/25

Rev. 1.4

Figure 1. Basic Application Circuit with CM2593/P fixed version

Champion Microelectronic Corporation

2A Step Down VOLTAGE REGULATOR

FEATURES

◆

APPLICATIONS

3.3V, 5V and adjustable output versions

Adjustable version output voltage range, 1.23V to 37V +4%

SOP-8L packages

Voltage mode non-synchronous PWM control

Thermal-shutdown and current-limit protection

ON/OFF shutdown control input

Input voltage range up to 40V

Output load current: 2A

150 kHz fixed frequency internal oscillator

Low power standby mode

Built-in switching transistor on chip

Simple High-efficiency step-down(buck) regulator

Efficient pre-regulator for linear regulators

On-card switching regulators

Battery / Car Charger

Positive to negative converter

Digital Still and Video Cameras

max over line and load condition

CM2593/P

Page 1

Related parts for CM2593-3.3V

CM2593-3.3V Summary of contents

Page 1

... The output version included fixed 3.3V, 5V, and an adjustable type. The packages are available in a standard 8-lead SOP8. TYPICAL APPLICATIONS Figure 1. Basic Application Circuit with CM2593/P fixed version 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR FEATURES ◆ ...

Page 2

... PIN CONFIGURATION Sop08 Top View(CM2593) BLOCK DIAGRAM 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR Champion Microelectronic Corporation CM2593/P Sop08 Top View(CM2593P) Page 2 ...

Page 3

... θ Ja θ Jc 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR Description CM2593 Output Voltage C: Adjustable SC: 3.3V ZJC: 5V Parameter Supply Voltage ON/OFF Pin input voltage Feedback Pin voltage Output voltage to Ground Power dissipation Storage temperature Operating temperature Operating voltage Thermal Resistance ...

Page 4

... FB V =24V IN V =12 force driver off FB ON/OFF pin=5V V =24V IN Low (regulator ON) High (regulator OFF) V =2.5V (OFF) LOGIC V =0.5V (ON) LOGIC Tj increasing Tj decreasing Champion Microelectronic Corporation CM2593/P = 0.2A LOAD Min. Typ. Max. Unit -50 -10 nA -100 127 150 173 Khz 110 150 173 30 60 Khz 1.4 1. ...

Page 5

... IN Output voltage 0.2A < I < 2A LOAD Efficiency V = 12V LOAD 8V < V < 40V IN 0.2A < I < 2A LOAD Efficiency V = 12V LOAD Champion Microelectronic Corporation CM2593/P Typ. Limit 1.235 1.193/1.18 1.267/1.28 =2A 75 3.168/3.135 3.3 3.432/3.465 =2A 75 4.8/4.75 5 5.2/5.25 =2A 80 =25ºC. J Unit V V MIN ...

Page 6

... The data for these curves was taken with the CM2593/P (SOP-8 package) operating as a buck switching regulator in an ambient temperature ...

Page 7

... Please to refer to Circuit and Demo Board Layout (the Fig. as above) 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR CM2593 VIN GND 2 7 OUT GND Output Voltage Fixed : R1= GND Output Voltage Adj : Vo=Vref*(1+(R2/R1 GND Vfb = 1.235V ; Champion Microelectronic Corporation CM2593/P R1=1K~5K BOT Layer . Page 7 ...

Page 8

... Minimum Footprint , θ 2 Copper Area = 30mm , θ 2 Copper Area = 70mm , θ 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR = 75℃/ 54℃/ 49℃/W JA Champion Microelectronic Corporation CM2593/P Dog-Bone Layout 2 Copper Area = 10mm , θ = 64℃/ Copper Area = 50mm , θ = 51℃/W JA Page 8 ...

Page 9

... Operating Quiescent Current 25.0 20.0 15.0 Switch ON 10.0 Switch OFF 5.0 0.0 -50 - JUNCTION TEMPERATURE( ON/OFF Threshold Voltage 5.0 4.0 3.0 2.0 1.0 0.0 -50 - JUNCTION TEMPERATURE ( Champion Microelectronic Corporation CM2593/P Switch Saturation Voltage 125 2A Load C 1.5 1 1.2 2 SWITCH CURRENT( Shutdown Quiescent Current 200 ...

Page 10

... Only 10.0 0.0 -50 - 100 125 o JUNCTION TEMPERATURE( C) Heavy Load operation Iout Vout ripple 20m V /div 5us/div Vin=12V Vout=5V Iload=2A Champion Microelectronic Corporation CM2593/P Thermal protection 100 125 150 175 200 o JUNCTION TEMPERATURE( C) Load step I L oad ...

Page 11

... PACKAGE DIMENSION PIN 1 ID 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR 8-PIN SOP (S08) θ 8-Pin SOP w/ Power Pad (PS08) θ Champion Microelectronic Corporation CM2593/P Page 11 ...

Page 12

... +886-3-567 9979 +886-3-567 9909 http://www.champion-micro.com 2007/01/25 Rev. 1.4 2A Step Down VOLTAGE REGULATOR IMPORTNT NOTICE Sales & Marketing 7F-6, No.32, Sec. 1, Chenggong Rd., Nangang District, Taipei City 115, Taiwan R.O. +886-2-2788 0558 +886-2-2788 2985 Champion Microelectronic Corporation CM2593/P Page 12 ...

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