M62221L/FP 3.0 V Fixed Output Voltage DC/DC Converter REJ03D0847-0200 Rev.2.00 Jun 14, 2006 General Description The M62221 is a general purpose DC/DC converter which provides a 3.0 V fixed output voltage. It is possible to simplify the peripheral circuit and to design compact and low cost sets because this IC, housed in a small 5 or 8-pin package includes necessary peripheral components. Especially this is most suitable for CD-ROM, Disk Drive sets and PDA as a converter from 5 V to 3.0 V. Features • • • • • Wide operation supply voltage range…... 4 to 15 V Low power consumption……………….. 900 µA (max.) Built-in oscillator without external components (110 kHz typ.) Built-in over current protection circuit Small size 5-pin SIP and 8-pin SOP packages Applications CD-ROM, PDA, general purpose electric products Block Diagram Over current detection resistor VCC CLM 4 3 Current limit circuit IN 5 − OP Amp + 1.25 V PWM Comp 1 Collector + + − OSC (110 kHz) 2 GND OUT + Rev.2.00 Jun 14, 2006 page 1 of 5 M62221L/FP Pin Arrangement M62221L M62221FP 5 IN 4 VCC 3 CLM 2 GND 1 Collector Collector 1 8 NC GND 2 7 NC CLM 3 6 NC VCC 4 5 IN NC : No connection (Top view) (Top view) Outline: 5P5T Outline: PRSP0008DA-A (8P2S-A) Rev.2.00 Jun 14, 2006 page 2 of 5 M62221L/FP Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted) Item Supply voltage Symbol VCC Ratings 16 Unit V Output current Power dissipation Conditions IO Pd 100 450 mA mW Ta = 25°C 5-pin SIP Thermal derating Kθ 440 4.5 mW mW/°C Ta > 25°C 8-pin SOP 5-pin SIP Operating ambient temperature Topr 4.4 −20 to +85 mW/°C °C Storage temperature Tstg −40 to +125 °C 8-pin SOP Electrical Characteristics (Ta = 25°C, VCC = 5 V, unless otherwise noted) Limits Block Item Symbol Min Typ Max Unit Test Conditions Supply voltage VCC 4.0 15 V Supply current Output voltage ICC VO 2.85 660 3.00 900 3.15 µA V Without load REF line regulation IN input current Vreg-L Iin 5 100 15 300 mV µA VCC = 4 to 12 V Oscillator Oscillator frequency Maximum on duty fOSC TDUTY 65 110 90 155 kHz % CLM Output Current limit voltage Output leakage current VTHCLM ICL 120 −1 150 180 1 mV µA Output saturation voltage Vsat 0.4 0.7 V All block Error Amp. Rev.2.00 Jun 14, 2006 page 3 of 5 VCC − CLM VCC = 12 V, VC = 12 V IO = 100 mA M62221L/FP Application Circuit (3.0 V Output DC/DC Converter) RCLM 0.1 Ω VIN (5 V) + 100 µF 4 3 VCC CLM 1 kΩ VOUT (3.0 V, 1 A) 5 IN 100 µF M62221 Collector 1 1 kΩ + GND 2 68 µH Figure 1 Example of the M62221L/FP Application Circuit • Current limit detection: When the voltage drop between pin 3 and pin 4 becomes more than 150 mV, the current limit detection circuit begins operating. The peak switch current "Ipk" is limited to 150 mV/RCLM. 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 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 Note: VF: Forward voltage drop of an external diode. Vsat: Output saturation voltage of an external switching transistor. ∆IO: It should be set between 1/3 and 1/5 of maximum output current. An external transistor, diode and inductor should have a peak current capability of greater than "Ipk". Rev.2.00 Jun 14, 2006 page 4 of 5 M62221L/FP Package Dimensions 5P5T Plastic 5pin 240mil SIP EIAJ Package Code SIP5-P-240-2.54 Weight(g) 0.22 JEDEC Code – Lead Material Cu Alloy D L A1 A A2 E Symbol 1 b e 5 E1 b2 A A1 A2 b b1 b2 c D E E1 e L c b1 SEATING PLANE JEITA Package Code P-SOP8-4.4x5-1.27 RENESAS Code PRSP0008DA-A MASS[Typ.] 0.07g E 5 *1 HE 8 Previous Code 8P2S-A Dimension in Millimeters Min Nom Max 6.1 – – – – 1.4 – – 4.0 0.4 0.5 0.6 1.1 1.2 1.5 0.75 0.85 1.15 0.22 0.27 0.34 11.7 11.9 11.5 1.77 1.97 2.17 0.6 0.7 0.8 – – 2.54 – – 3.0 F 1 NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET. 4 Index mark c A2 *2 A1 D L A Reference Symbol *3 e bp y D E A2 A1 A bp c Detail F HE e y L Rev.2.00 Jun 14, 2006 page 5 of 5 Dimension in Millimeters Min Nom Max 4.8 5.0 5.2 4.2 4.4 4.6 1.5 0.05 1.9 0.35 0.4 0.5 0.13 0.15 0.2 0° 10° 5.9 6.2 6.5 1.12 1.27 1.42 0.1 0.2 0.4 0.6 Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. 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