 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| MITSUBISHI M6227XGP 5-PIN SOT-23 3V SYSTEM FIXED OUTPUT VOLTAGE DC-DC CONVERTER DESCRIPTION M6227XGP is an integrated circuit designed as fixed output voltage general purpose DC-DC converter. Integrating peripheral components in ultrasmall 5-pin SOT23 package allows for simplified external circuit and compact low cost design. This IC is applicable to portable equipments due to low circuit current 500uA(typ.) Especially this is most suitable for CD-ROM, and so on as converter from 5 to 3V system. PIN CONFIGURATION (TOP VIEW) COLLECTOR OUTPUT GND 1 2 3 5 CLM IN 4 Vcc FEATURES Wide operation power supply voltage range -- 4V to 15V(Vcc=5V typ.) Low power consumption -- 500A max.(Vcc=5V typ., at no load) Built-in oscillator without peripheral components (110KHz typ.) Built-in overcurrent protection circuit Ultrasmall 5-pin SOT23 package Outline 5P2X-A (SOT-23) APPLICATIONS CD-ROM, portable equipments, general electric products M62270GP M62271GP M62272GP M62273GP M62274GP M62275GP M62276GP 3.3V 3.0V 2.7V 2.4V 2.1V 1.8V 1.5V BLOCK DIAGRAM VCC CLM 4 OP Amp 3 CURRENT LIMIT CIRCUIT PWM Comp 1 Collector IN 5 1.25V OSC. (110KHz) 2 GND ( 1 /3) Jan. 2000 MITSUBISHI M6227XGP 5-PIN SOT-23 3V SYSTEM FIXED OUTPUT VOLTAGE DC-DC CONVERTER ABSOLUTE MAXIMUM RATINGS (Ta=25C, unless otherwise noted) Symbol Vcc Io Pd Parameter Supply Voltage Output Current Power Dissipation Ta=25C Ta>25C Conditions Ratings 16 100 200 2.0 -20 to +85 -40 to +125 Unit V mA mW mW/C C C KTHETA Thermal Derating Ratio Topr Tstg Operating Ambient Temperature Storage Temperature ELECTRICAL CHARACTERISTICS (Ta=25C, Vcc=5V, unless otherwise noted) Block Symbol Vcc Icc Parameter Supply Voltage Supply Current No load M62270GP M62271GP M62272GP Error Amp. Vo Output Voltage M62273GP M62274GP M62275GP M62276GP Vreg-L Iin REF Line Regulation IN Input Current Vcc - CLM Vcc = 12V, Vc = 12V Io = 100mA Vcc= 4 to 12V 65 120 -1 Conditions Limits Min 4.0 3.15 2.85 2.57 2.28 2.00 1.71 1.42 Typ 500 3.30 3.00 2.70 2.40 2.10 1.80 1.50 5 100 110 150 90 1.2 Max 15 700 3.45 3.15 2.83 2.52 2.20 1.89 1.58 30 300 160 180 1 2.0 Units V A V V V V V V V mV A KHz mV % A V Oscillator fosc Oscillator Frequency CLM VTHCLM Current Limit Voltage Output TDUTY Maximum ON Duty Output Leakage Current ICL Vsat Output Saturation Voltage ( 2 /3) Jan. 2000 MITSUBISHI M6227XGP 5-PIN SOT-23 3V SYSTEM FIXED OUTPUT VOLTAGE DC-DC CONVERTER 1. Application Circuit (3.3V Output DC-DC Converter; M62270GP) VIN (5V) + RCLM 0.1ohm 100F 4 Vcc VOUT(3.3V,1A) 3 IN 100F + 5 CLM 1Kohm M62270 Collector 1 1Kohm GND 2 47H Fig.1 Example of application circuit of M62270GP Current Limit Detction: When the voltage drop between 4pin and 5pin becomes 150mV or more, Current Limit Detection circuit starts to operate. In the example of application (fig.1), the current is limited to 1.5A. 2. THE EXPRESSION OF CIRCUIT CONSTANTS CONSTANTS TON TOFF (TON+TOFF)MAX TOFF(MIN) TON(MAX) L(MIN) Ipk RCLM * * * * EXPRESSIONS VO+VF VIN - VCE(sat) - VO 1 fosc fosc:110KHz(Vcc=5V) ( TON + TOFF ) / ( 1 + TON ) TOFF 1 fosc - TOFF ( VIN - VCE(sat) - VO ) TON(MAX) Io Io + 1 Io 2 0.15 Ipk VCLM:150mV(Vcc=5V) VF : Forward voltage drop of an external diode. Vsat : Output saturation voltage of an external switching transistor. Io :Set to 1/3 to 1/5 of maximum output current Choose an external transistor, diode and inductor with peak current rating greater than "Ipk". ( 3 /3 ) Jan. 2000 |
Price & Availability of M62272GP
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |