RP505K001C-TR

RP505K Series 1A Step-down DC/DC Converters with Synchronous Rectifier No.EA-273-210909 OUTLINE The RP505K Series are low supply current CMOS-based 1A*1 step-down DC/DC Converters with synchronous rectifier. Each of these ICs consists of an oscillator, a reference voltage unit, an error amplifier, a switching control circuit, a mode control circuit, a soft-start circuit, a latch type protection circuit, an under voltage lock out (UVLO) circuit, a thermal shutdown circuit, and a switching transistors. A low ripple, high efficiency synchronous rectifier step-down DC/DC converter can be easily composed of this IC with only an inductor and capacitors. Since the package is DFN(PLP)2020-8, high density mounting on boards is possible. In the RP505K series, as for the A version and B version, since feedback resistors are built-in, the voltage is fixed internally. 0.1V step output can be set by laser-trim and ±1.5%(VOUT≥1.2V) or 18mV(VOUT300mA 200 0 0.90 0.85 0.80 Output Voltage 0.75 0.70 0.65 -10 10 20 30 40 50 60 70 80 90 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K081A/B (VIN=3.6V) RP505K081A/B (VIN=3.6V) 1000 1000 Output Current 800mA-->300mA 500 0.85 250 0.80 0 0.75 Output Voltage 0.70 0.65 Output Voltage VOUT (V) Output Current 300mA-->800mA Output Current IOUT (mA) Output Voltage VOUT (V) 750 500 0.90 250 0.85 0 0.80 Output Voltage 0.75 0.70 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) 750 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) Output Current IOUT (mA) -10 0 24 Output Current IOUT (mA) -10 0 Output Voltage VOUT (V) 200 Output Current IOUT (mA) 0 Output Voltage VOUT (V) Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) 400 RP505K RP505K181A/B (VIN=3.6V) RP505K181A/B (VIN=3.6V) MODE=“L”PWM/VFM automatic shift MODE=“L”PWM/VFM automatic shift 400 400 Output Current 300mA-->1mA 1.80 1.75 Output Voltage 1.70 1.65 0 1.90 1.85 1.80 Output Voltage 1.75 1.70 10 20 30 40 50 60 70 80 90 -100 0 100 200 300 400 500 600 700 800 900 Time t (µs) Time t (µs) RP505K181A/B (VIN=3.6V) RP505K181A/B (VIN=3.6V) MODE=“H” forced PWM MODE=“H” forced PWM 400 Output Current 300mA-->1mA 1.85 1.80 1.75 Output Voltage 1.70 1.65 -10 0 Output Voltage VOUT (V) 0 Output Current IOUT (mA) 200 Output Current 1mA-->300mA 200 0 1.90 1.85 1.80 Output Voltage 1.75 1.70 10 20 30 40 50 60 70 80 90 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) Time t (µs) RP505K181A/B (VIN=3.6V) RP505K181A/B (VIN=3.6V) 500 1.85 250 1.80 0 1.75 Output Voltage 1.70 1.65 Output Voltage VOUT (V) 750 1000 Output Current IOUT (mA) Output Voltage VOUT (V) 1000 Output Current 300mA-->800mA Output Current IOUT (mA) 400 Output Current 800mA-->300mA 750 500 1.90 250 1.85 0 1.80 Output Voltage 1.75 Output Current IOUT (mA) -10 0 Output Voltage VOUT (V) 200 Output Current IOUT (mA) 1.85 Output Voltage VOUT (V) 0 Output Current IOUT (mA) Output Voltage VOUT (V) 200 Output Current 1mA-->300mA 1.70 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) 25 RP505K RP505K331A/B (VIN=5.0V) MODE=“L”PWM/VFM automatic shift RP505K331A/B (VIN=5.0V) MODE=“L”PWM/VFM automatic shift 400 3.30 3.25 Output Voltage 3.20 200 0 3.40 3.35 3.30 Output Voltage 3.25 3.20 3.15 -100 10 20 30 40 50 60 70 80 90 0 100 200 300 400 500 600 700 800 900 Time t (µs) Time t (µs) RP505K331A/B (VIN=5.0V) RP505K331A/B (VIN=5.0V) MODE=“H” forced PWM MODE=“H” forced PWM 0 3.35 3.30 3.25 Output Voltage 3.20 Output Current 300mA-->1mA Output Voltage VOUT (V) 200 Output Current 1mA-->300mA 400 Output Current IOUT (mA) 0 3.40 3.35 3.30 Output Voltage 3.25 3.20 3.15 -10 0 -10 10 20 30 40 50 60 70 80 90 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K331A/B (VIN=5.0V) RP505K331A/B (VIN=5.0V) 1000 500 3.35 250 3.30 0 3.25 Output Voltage 3.20 3.15 Output Voltage VOUT (V) 750 Output Current 300mA-->800mA Output Current IOUT (mA) 1000 Output Voltage VOUT (V) 200 Output Current 800mA-->300mA 500 3.40 250 3.35 0 3.30 3.25 Output Voltage 3.20 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) 750 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) Output Current IOUT (mA) Output Voltage VOUT (V) 400 Output Current IOUT (mA) -10 0 26 Output Current IOUT (mA) 3.35 Output Voltage VOUT (V) 0 Output Current IOUT (mA) Output Voltage VOUT (V) 200 Output Current 1mA-->300mA 400 Output Current 300mA-->1mA RP505K RP505K001C (VIN=3.6V, VOUT=0.8V) RP505K001C (VIN=3.6V, VOUT=0.8V) MODE=“L”PWM/VFM モード自動切替え MODE=“L”PWM/VFM automatic shift 400 Output Current 300mA-->1mA 0.85 0.80 Output Voltage 0.70 0.90 0.85 0.80 Output Voltage 0.75 0.65 -10 0 0 0.70 -100 10 20 30 40 50 60 70 80 90 0 Time t (µs) 100 200 300 400 500 600 700 800 900 Time t (µs) RP505K001C (VIN=3.6V, VOUT=0.8V) RP505K001C (VIN=3.6V, VOUT=0.8V) MODE=“H” forced PWM MODE=“H” forced PWM 0 0.85 0.80 0.75 Output Voltage 0.70 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA 400 Output Current IOUT (mA) 0.65 Output Current 300mA-->1mA 200 0 0.90 0.85 0.80 Output Voltage 0.75 0.70 -10 0 10 20 30 40 50 60 70 80 90 -10 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K001C (VIN=3.6V, VOUT=0.8V) RP505K001C (VIN=3.6V, VOUT=0.8V) Output Current 300mA-->800mA 500 0.85 250 0.80 0 0.75 Output Voltage 0.70 Output Voltage VOUT (V) 750 1000 Output Current IOUT (mA) Output Voltage VOUT (V) 1000 Output Current 800mA-->300mA 750 500 0.90 250 0.85 0 0.80 Output Voltage 0.75 Output Current IOUT (mA) Output Voltage VOUT (V) 400 Output Current IOUT (mA) 0.75 200 Output Current IOUT (mA) 0 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) Output Voltage VOUT (V) 400 0.70 0.65 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) 27 RP505K RP505K001C (VIN=3.6V, VOUT=1.2V) RP505K001C (VIN=3.6V, VOUT=1.2V) MODE=“L”PWM/VFM automatic shift MODE=“L”PWM/VFM automatic shift 400 0 1.25 1.20 Output Voltage 1.10 1.05 -10 0 0 1.30 1.25 1.20 Output Voltage 1.15 1.10 -100 10 20 30 40 50 60 70 80 90 Time t (µs) 200 0 100 200 300 400 500 600 700 800 900 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.2V) RP505K001C (VIN=3.6V, VOUT=1.2V) MODE=“H” forced PWM MODE=“H” forced PWM 0 1.25 1.20 1.15 Output Voltage 1.10 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA 400 Output Current IOUT (mA) 1.05 Output Current 300mA-->1mA 0 1.30 1.25 1.20 Output Voltage 1.15 1.10 -10 0 10 20 30 40 50 60 70 80 90 -10 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.2V) RP505K001C (VIN=3.6V, VOUT=1.2V) 1000 Output Current 300mA-->800mA 500 1.25 250 1.20 0 1.15 Output Voltage 1.10 1.05 Output Voltage VOUT (V) 750 Output Current IOUT (mA) Output Voltage VOUT (V) 1000 Output Current 800mA-->300mA 10 20 30 40 50 60 70 80 90 Time t (µs) 750 500 1.30 250 1.25 0 1.20 Output Voltage 1.15 1.10 -10 0 28 200 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) Output Current IOUT (mA) Output Voltage VOUT (V) 400 Output Current IOUT (mA) 1.15 Output Current 300mA-->1mA Output Current IOUT (mA) Output Current IOUT (mA) Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Voltage VOUT (V) 400 RP505K RP505K001C (VIN=3.6V, VOUT=1.8V) RP505K001C (VIN=3.6V, VOUT=1.8V) MODE=“L”PWM/VFM automatic shift MODE=“L”PWM/VFM automatic shift 400 1.85 1.80 1.75 Output Voltage 1.70 1.65 Output Current 300mA-->1mA 200 0 1.90 1.85 1.80 Output Voltage 1.75 1.70 10 20 30 40 50 60 70 80 90 -10 0 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.8V) 0 100 200 300 400 500 600 700 800 900 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.8V) MODE=“H” forced PWM MODE=“H” forced PWM 400 0 1.85 1.80 1.75 Output Voltage 1.70 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) 1.65 Output Current 300mA-->1mA 200 0 1.90 1.85 1.80 Output Voltage 1.75 1.70 -10 0 10 20 30 40 50 60 70 80 90 -10 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.8V) RP505K001C (VIN=3.6V, VOUT=1.8V) 1000 Output Current 300mA-->800mA 500 1.85 250 1.80 0 1.75 Output Voltage 1.70 1.65 Output Voltage VOUT (V) 750 Output Current IOUT (mA) 1000 750 Output Current 800mA-->300mA 500 1.90 250 1.85 0 1.80 Output Voltage 1.75 Output Current IOUT (mA) Output Voltage VOUT (V) 400 Output Current IOUT (mA) -10 0 Output Voltage VOUT (V) Output Current IOUT (mA) 0 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) Output Voltage VOUT (V) 400 1.70 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) -10 0 10 20 30 40 50 60 70 80 90 Time t (us) 29 RP505K RP505K001C (VIN=5.0V, VOUT=3.3V) RP505K001C (VIN=5.0V, VOUT=3.3V) MODE=“L”PWM/VFM automatic shift MODE=“L”PWM/VFM automatic shift 400 3.35 3.30 3.25 Output Voltage 3.20 3.15 Output Current 300mA-->1mA 200 0 3.40 3.35 3.30 Output Voltage 3.25 3.20 10 20 30 40 50 60 70 80 90 -100 0 100 200 300 400 500 600 700 800 900 Time t (µs) Time t (µs) RP505K001C (VIN=5.0V, VOUT=3.3V) RP505K001C (VIN=5.0V, VOUT=3.3V) MODE=“H” forced PWM MODE=“H” forced PWM 400 0 3.35 3.30 3.25 Output Voltage 3.20 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) 3.15 Output Current 300mA-->1mA 0 3.40 3.35 3.30 Output Voltage 3.25 3.20 -10 0 10 20 30 40 50 60 70 80 90 -10 0 Time t (µs) 10 20 30 40 50 60 70 80 90 Time t (µs) RP505K001C (VIN=5.0V, VOUT=3.3V) RP505K001C (VIN=5.0V, VOUT=3.3V) 1000 Output Current 300mA-->800mA 500 3.35 250 3.30 0 3.25 Output Voltage 3.20 3.15 Output Voltage VOUT (V) 750 Output Current IOUT (mA) 1000 Output Voltage VOUT (V) 200 Output Current 800mA-->300mA 500 3.40 250 3.35 0 3.30 Output Voltage 3.25 3.20 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) 750 -10 0 10 20 30 40 50 60 70 80 90 Time t (µs) Output Current IOUT (mA) Output Voltage VOUT (V) 400 Output Current IOUT (mA) -10 0 30 Output Current IOUT (mA) 0 Output Voltage VOUT (V) 200 Output Current 1mA-->300mA Output Current IOUT (mA) Output Voltage VOUT (V) 400 RP505K 18) Mode Switching Waveform RP505K181A/B (VIN=3.6V, IOUT=1mA) RP505K181A/B (VIN=3.6V, IOUT=1mA) MODE=“L” --> MODE=“H” MODE=“H" --> MODE=“L” 1.80 600 1.80 1.75 -200 800 0 Time t (µs) 200 400 600 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.2V, IOUT=1mA) RP505K001C (VIN=3.6V, VOUT=1.2V, IOUT=1mA) MODE=“L” --> MODE=“H” MODE=“H” --> MODE=“L” 5 Output Voltage 1.20 1.15 -200 0 200 400 600 Output Voltage VOUT (V) 1.30 (V) 0 Mode Input Voltage Mode Input Voltage VMODE Output Voltage VOUT (V) 5 1.25 0 Mode Input Voltage 1.30 1.20 1.15 -200 800 Output Voltage 1.25 0 Time t (µs) 200 400 600 RP505K001C (VIN=3.6V, VOUT=1.8V, IOUT=1mA) MODE=“L” --> MODE=“H” MODE=“H” --> MODE=“L” Output Voltage 1.80 0 200 400 Time t (µs) 600 800 Output Voltage VOUT (V) 1.90 (V) 0 Mode Input Voltage 5 Mode Input Voltage VMODE Output Voltage VOUT (V) 5 1.75 -200 800 Time t (µs) RP505K001C (VIN=3.6V, VOUT=1.8V, IOUT=1mA) 1.85 (V) 800 (V) 400 Output Voltage 1.85 0 Mode Input Voltage 1.90 Output Voltage 1.85 1.80 1.75 -200 0 200 400 600 (V) 200 Mode Input Voltage 1.90 Mode Input Voltage VMODE 0 0 Mode Input Voltage VMODE 1.75 -200 Output Voltage VOUT (V) Output Voltage 1.85 (V) 1.90 Mode Input Voltage VMODE Output Voltage VOUT (V) 0 Mode Input Voltage Mode Input Voltage VMODE 5 5 800 Time t (µs) 31 RP505K PACKAGE INFORMATION Power Dissipation (DFN(PLP)2020−8) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: Measurement Conditions Standard Test Land Pattern Environment Mounting on Board (Wind velocity=0m/s) Board Material Glass cloth epoxy plastic (Double sided) Board Dimensions 40mm*40mm*1.6mm Copper Ratio Top side: Approx. 50%, Back side: Approx. 50% Through-holes φ 0.54mm * 30pcs Measurement Result: (Ta=25°C, Tjmax=125°C) Standard Test Land Pattern Power Dissipation 880mW Thermal Resistance θja = (125-25 °C)/0.88W = 114 °C/W 40 1000 880 800 On Board 40 Power Dissipation PD (mW) 1200 600 400 200 0 0 25 50 75 85 100 125 150 Measurement Board Pattern Ambient Temperature (°C) IC Mount Area (Unit : mm) Power Dissipation 32 RP505K A 1.8±0.1 B 2.00 5 8 0.25±0.1 Package Dimensions (DFN(PLP)2020−8) X4 0.05 1.0±0.1 2.00 ※ C0.2 4 1 0.6MAX. 0.5 0.05 S 0.05 M AB Bottom View 0.05min S 0.25±0.1 0.25±0.1 INDEX (Unit : mm) ※) Tab is GND level (they are connected to the reverse side of this IC). The tab is better to be connected to the GND, but leaving it open is also acceptable. Mark Specification (DFN(PLP)2020−8) : Product Code … Please refer to the RP505K Series Mark Specification Table. : Lot Number … Alphanumeric Serial Number 8 7 6 5   1 2 3 4 33 RP505K RP505K Series Mark Specification PKG: DFN(PLP)2020−8 RP505Kxx1A Product Name  RP505K061A CU 06 RP505K061B CV 0 6 RP505K071A CU 07 RP505K071B CV 0 7 RP505K081A CU 08 RP505K081B CV 0 8 RP505K091A CU 09 RP505K091B CV 0 9 RP505K101A CU 10 RP505K101B CV 1 0 RP505K111A CU11 RP505K111B CV 11 RP505K121A CU 12 RP505K121B CV 1 2 RP505K131A CU 13 RP505K131B CV 1 3 RP505K141A CU 14 RP505K141B CV 1 4 RP505K151A CU 15 RP505K151B CV 1 5 RP505K161A CU 16 RP505K161B CV 1 6 RP505K171A CU 17 RP505K171B CV 1 7 RP505K181A CU 18 RP505K181B CV 1 8 RP505K191A CU 19 RP505K191B CV 1 9 RP505K201A CU 20 RP505K201B CV 2 0 RP505K211A CU 21 RP505K211B CV 2 1 RP505K221A CU 22 RP505K221B CV 2 2 RP505K231A CU 23 RP505K231B CV 2 3 RP505K241A CU 24 RP505K241B CV 2 4 RP505K251A CU 25 RP505K251B CV 2 5 RP505K261A CU 26 RP505K261B CV 2 6 RP505K271A CU 27 RP505K271B CV 2 7 RP505K281A CU 28 RP505K281B CV 2 8 RP505K291A CU 29 RP505K291B CV 2 9 RP505K301A CU 30 RP505K301B CV 3 0 RP505K311A CU 31 RP505K311B CV 3 1 RP505K321A CU 32 RP505K321B CV 3 2 RP505K331A CU 33 RP505K331B CV 3 3 RP505K121A5 CU 01 RP505K121B5 CV 0 1 RP505K001C Product Name RP505K001C 34  RP505Kxx1B Product Name  C W0 0 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to our sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of our company. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under our company's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, fire containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this document. 8. The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and characteristics in the evaluation stage. 9. WLCSP products should be used in light shielded environments. The light exposure can influence functions and characteristics of the products under operation or storage. 10. There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the case of recognizing the marking characteristic with AOI, please contact our sales or our distributor before attempting to use AOI. 11. Please contact our sales representatives should you have any questions or comments concerning the products or the technical information. Official website https://www.nisshinbo-microdevices.co.jp/en/ Purchase information https://www.nisshinbo-microdevices.co.jp/en/buy/