BP5224-33 DC/DC converter 3.3V/300mA output Dimensions (mm) Absolute Maximum Ratings Unit 24 −20 to +80 −25 to +105 105 300 V °C °C °C mA 9.7Max. 17.8Max. BP5224-33 Marking side Limits VIN Topr Tstg Tcmax Iopeak 18.1Max. Symbol 4.0±1.0 Parameter Input voltage Operating temperature Storage temperature Maximum surface temperature Maximum output current 1 2 4 5 6 0.5±0.1 3.3Max. 0.25±0.05 1.3±0.2 P=2.54±0.2 3.65Max. 6.05Max. 2.54x5=12.7(TYP.) Electrical Characteristics Typ. Max. 18.0 3.46 300 0.10 0.15 0.15 − 16.0 3.3 − 0.03 0.07 0.06 71 DC Vin=7 to 18V Io=0 to 300mA BP5224-33 1 2 4 5 6 300 250 200 150 100 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Function Input terminal Vi Input terminal Vi Skip GND GND Output terminal Vo Conversion Efficiency 100 90 80 70 60 50 40 30 20 10 0 Conversion Efficiency (Ta=25°C, Vin=16V) 50 100 150 200 250 300 Output Current Io(A) Load Regulation VIN C2 Vo Be sure to evaluate it under the cindition that it is mounted by your product. Especially, Confirm whether output current never exceeds a maximum standard with current probe. Outside part F1: FUSE Use a fuse for safety. C1: Input capacitor Rated voltage : More than 50V Capacity : more than 100µF, low impedance type Rated ripple current : More than 0.2Arms C2: Output capacitor Rated voltage : More than 10V Capacity : 220 to 680µF, low impedance type Rated ripple current : More than 0.2Arms Evaluate it with the actual opportunity because it influences an output ripple voltage. Output Voltage Vo(V) F1 C1 50 ∗2 Application circuit Pin No. 1 2 3 4 5 6 Derating Curve 350 ∗1 ∗1 Maximum output current varies depending on ambient temperature : please refer to derating curve. ∗2 Spike noise is not included in output ripple voltage. BP5224-33 Derating curve Conditions Unit V V mA V V Vp-p % Conversion Efficiency η (%) Min. 7.0 3.14 − − − − 68 Output Current Io(A) Symbol Parameter Input voltage Vin Output voltage Vo Output current Io Line regulation Vr Load regulation VI Output ripple voltage Vp η Power conversion efficiency 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 0 Load Regulation (Ta=25°C) VIN=7V VIN=16V 50 100 150 200 250 Output Current Io(A) 300 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2007 ROHM CO.,LTD. THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0