BD9533EKN-E2 Rohm Semiconductor, BD9533EKN-E2 Datasheet
BD9533EKN-E2
Specifications of BD9533EKN-E2
Related parts for BD9533EKN-E2
BD9533EKN-E2 Summary of contents
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... BD9533EKN ●Description BD9533EKN is a switching regulator controller with high output current which can achieve low output voltage (0.7V to 2.0V) from a wide input voltage range (4.5V to 28V). High efficiency for the switching regulator can be realized by utilizing an external N-MOSFET power transistor. A new technology called H ultra high transient response against load change ...
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Absolute Ratings (Ta=25℃) Parameter Input Voltage 1 Input Voltage 2 Input Voltage 3 BOOT Voltage BOOT-SW Voltage HG-SW Voltage LG Voltage REF Voltage Output Voltage ILIM/SCP/SS/FS/SLLM Voltage VREG Voltage EN Input Voltage Power Dissipation 1 Power Dissipation 2 Power ...
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CHARACTERISTICS (unless otherwise noted, Ta=25℃ VCC=5V,VDD=5V,EN/SLLM=5V,VIN=12V,REF=1.8V,R Parameter [Whole Device] VCC Bias Current VIN Bias Current VCC Standby Current VIN Standby Current EN Low Voltage EN HighVoltage EN Bias Current VREG Voltage [Under Voltage Locked Out ] VCC threshold voltage ...
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Data 600 590 580 570 560 550 - Ta( ℃ ) Fig Icc 4.30 4.25 Sweep up 4.20 4.15 4.10 Sweep down 4.05 4.00 - Ta( ℃ ...
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Data ILIM=0. ℃ ] Fig. current limit threshould 100 SLLM 80 60 Continuous mode 100 1000 10000 Io(mA) Fig.16 ...
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Data VOUT IL HG/LG Fig.25 SLLM (I =0A) OUT IL HG/LG/SW Fig.28 Continuous MODE (Io=0A) VIN HG/LG VOUT Fig.31 VIN change (5→19V) 1.82 1.81 Continuous mode 1.8 SLLM 1.79 1. 100 1000 Iout [mA] Fig. ...
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Diagram VCC 2 EN VREG Reference VIN 4 Block REF×0.7 SCP SS×0.7 SCP VOUT 7 REF VOUT + 18 UVLO TSD ILIM Thermal Protection SCP TSD 1 GND FS ●PHYSICAL DIMENSIONS BD9533 1PIN MARK Lot No. ...
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... It is recommended that a 0.1uF bypass capacitor be put in this pin. ・ILIM(3pin) BD9533EKN detects the voltage between Is+ pin and Is- pin and limits the output current (OCP). Voltage equivalent to 1/10 of the ILIM voltage is the voltage drop of external current sense resistor. A very low current sense resistor or inductor DCR can also be used for this platform. ・ ...
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... Operation The BD9533EKN is a synchronous buck regulator controller incorporating ROHM’s proprietary H system. When V drops due to a rapid load change, the system quickly restores V OUT Thus, it serves to improve the regulator’s transient response. Activating the Light Load Mode will also exercise Simple Light Load Mode (SLLM) control when the load is light, to further increase efficiency ...
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Chart • Soft Start Function OUT IIN ・Timer Latch Type Short Circuit Protection REF×0.7 V OUT T SCP SCP EN/UVLO ・Over Voltage Protection REF×1.2 VOUT HG LG Switching Soft start is exercised with the ...
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Component Selection 1. Inductor (L) selection Δ OUT L Co Output ripple current ※Passing a current larger than the inductor’s rated current will cause magnetic saturation in the inductor and decrease system efficiency. ...
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MOSFET Selection V IN main switch V OUT L Co synchronous switch 5. Setting Detection Resistance Current limit OUT Current ...
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VIN=5V 7V 2500 12V 16V 2000 19V 1500 1000 500 100 RFS [kΩ] Calculated frequency 1200 1000 800 600 400 200 100 Resistance [kΩ] 7. Setting standard voltage (REF) V REF ...
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Setting output voltage This IC is operated that output voltage is REF≒VOUT. And it is operated that output voltage is feed back to FB pin in case the output voltage is 0.7V to 2.0V REF ...
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Equivalent Circuit 3pin (ILIM 6pin (SLLM 9pin (Is 14pin(HG) BOOT BOOT 17pin (FS 20pin (REF 4pin (EN) 7pin (SCP 11pin (LG 15pin (BOOT) ...
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... GRM39X7R152K50 C13 1uF KYOCERA CM105B105K06A C14 C15 10uF KYOCERA CM21B106M06A C16 C17 470uF SANYO 2R5TPE470ML R1 68KΩ ROHM MCR03 R2 0Ω ROHM MCR03 R3 0Ω ROHM MCR03 R2 BD9533EKN 5 12 VIN VDD 4 EN R11 15 BOOT 6 SLLM R10 VREG ILIM 10 PGND 20 R4 REF ...
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... MURATA GRM39X7R152K50 C13 1uF KYOCERA CM105B105K06A C14 C15 10uF KYOCERA CM21B106M06A C16 C17 330uF SANYO 6TPB330M R1 68KΩ ROHM MCR03 R2 0Ω ROHM MCR03 R3 0Ω ROHM MCR03 R2 BD9533EKN PGND 5 12 VIN VDD 4 EN R11 15 BOOT 6 PGND SLLM R10 VREG ILIM 10 ...
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... IC off to prevent thermal runaway not designed to protect the IC or guarantee its operation. Do not continue to use the IC after operating this circuit or use the environment where the operation of this circuit is assumed. BD9533EKN 10. Testing on application boards When testing the application board, connecting a capacitor to a pin with low impedance subjects the IC to stress. ...
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Regarding input pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of these P layers with the N ...
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Designations (Selections) for Ordering Product name ・ BD9533 HQFN20V <Dimension> (2.1) 4.2 ± 0.1 4.0 ± 0.1 0.5 (1. 0.22 ± 0.05 0.05 0. ...
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Appendix No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM CO.,LTD. The content specified herein is subject to change for improvement without notice. The content specified herein is for the ...