M6227xGP 5-Pin SOT-23 3 V System Fixed Output Voltage DC/DC Converter REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Description M6227xGP is an integrated circuit designed as fixed output voltage general purpose DC/DC converter. Integrating peripheral components in ultra small 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 500 µA (typ.) Especially this is most suitable for CD-ROM, and so on as converter from 5 to 3 V system. Features • • • • • Wide operation power supply voltage range…….. 4 V to 15 V (VCC = 5 V typ.) Low power consumption………………………… 500 µA max. (VCC = 5 V typ., at no load) Built-in oscillator without peripheral components (110 kHz typ.) Built-in over current protection circuit Ultra small 5-pin SOT23 package Applications CD-ROM, portable equipments, general electric products Block Diagram VCC 4 CLM 5 Current limit circuit IN 3 − OP Amp + PWM Comp + + − 1.25 V OSC. (110 kHz) 2 GND REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Page 1 of 5 1 Collector M6227xGP Pin Arrangement M6227xGP Collector output 1 GND 2 IN 3 5 CLM 4 VCC (Top view) Outline: SOT-23, PLSP0005ZA-A (SOT-25) Type Name & Output Voltage Type Name Output Voltage M62270GP M62271GP 3.3 V 3.0 V M62272GP M62273GP 2.7 V 2.4 V M62274GP M62275GP 2.1 V 1.8 V M62276GP 1.5 V REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Page 2 of 5 M6227xGP Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted) Item Supply voltage Symbol Ratings 16 Unit V VCC Output current Conditions IO 100 mA Power dissipation Thermal derating ratio Pd Kθ 200 2.0 mW mW/°C Operating ambient temperature Storage temperature Topr Tstg −20 to +85 −40 to +125 °C °C Ta = 25°C Ta > 25°C Electrical Characteristics (Ta = 25°C, VCC = 5 V, unless otherwise noted) Limits Typ Max Units Supply voltage Supply current VCC ICC 4.0 500 15 700 V µA No load Output voltage VO 3.15 2.85 3.30 3.00 3.45 3.15 V V M62270GP M62271GP 2.57 2.28 2.70 2.40 2.83 2.52 V V M62272GP M62273GP 2.00 1.71 2.10 1.80 2.20 1.89 V V M62274GP M62275GP 1.42 1.50 5 1.58 30 V mV Block Error Amp. Item Symbol Min Conditions M62276GP VCC = 4 to 12 V REF line regulation Vreg-L Oscillator IN input current Oscillator frequency Iin fOSC 65 100 110 300 160 µA kHz CLM Output Current limit voltage Maximum on duty VTHCLM TDUTY 120 150 90 180 mV % VCC − CLM Output leakage current Output saturation voltage ICL Vsat −1 1.2 1 2.0 µA V VCC = 12 V, VC = 12 V IO = 100 mA REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Page 3 of 5 M6227xGP Application Circuit (3.3 V Output DC/DC Converter; M62270GP) RCLM VIN (5 V) + 0.1 Ω 100 µF 4 5 VCC CLM 1 kΩ VOUT (3.3 V, 1 A) 3 IN 100 µF Collector 1 M62270 1 kΩ + GND 47 µH 2 Figure 1 Example of Application Circuit of M62270GP • Current limit detection: When the voltage drop between 4-pin and 5-pin becomes 150 mV or more, current limit detection circuit starts to operate. In the example of application (Figure 1), the current is limited to 1.5 A. The Expression of Circuit Constants Constants TON TOFF (TON + TOFF) MAX TOFF (MIN) TON (MAX) L (MIN) lpk RCLM Note: Expressions VO + VF VIN − VCE (sat) − VO 1 fOSC: 110 kHz (VCC = 5 V) fOSC (TON + TOFF) / ( 1 + TON ) TOFF 1 − TOFF fOSC (VIN − VCE (sat) − VO) × TON (MAX) ∆lO lO + 1 ∆lO 2 0.15 ∆VCLM: 150 mV (VCC = 5 V) Ipk 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". REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Page 4 of 5 M6227xGP Package Dimensions JEITA Package Code SC-74A RENESAS Code PLSP0005ZA-A MASS[Typ.] 0.015 g Package Name SOT-25 Unit: mm D θ 1.9 ± 0.2 HE E L L1 b Reference Symbol e Dimension in Millimeters Min 0.8 A2 A c 1.3 0 A2 1.0 1.1 1.2 b 0.3 0.4 0.5 c 0.07 0.1 0.2 D 2.7 2.9 3.1 E 1.5 1.6 1.8 HE L1 2.6 3.0 0.2 0.1 0.6 Z REJ03D0849-0201 Rev.2.01 Nov 14, 2007 Page 5 of 5 2.8 0.6 y θ 0.1 0.95 L A1 Max A1 e y Nom A Z 0° 15° Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Notes: 1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. 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