BD9106FVM Rohm, BD9106FVM Datasheet
BD9106FVM
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BD9106FVM Summary of contents
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... BD9102FVM, BD9104FVM, BD9106FVM ●Description ROHM’s high efficiency step-down switching regulator (BD9102FVM, BD9104FVM, BD9106FVM power supply designed to produce a low voltage including 1.24 volts from 5 volts power supply line. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load. ● ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Recommended Operating Conditions (Ta=25℃) Parameter Symbol V voltage voltage voltage SW average output current Isw *4 Pd should not be exceeded. ●Electrical Characteristics =5V,EN=V ◎BD9102FVM(Ta=25℃,V CC Parameter Standby current Bias current EN Low voltage EN High voltage EN input current Oscillation frequency *5 Pch FET ON resistance ...
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... BD9102FVM, BD9104FVM, BD9106FVM =5V,EN=V ◎BD9106FVM(Ta=25℃,V CC Parameter Standby current Bias current EN Low voltage EN High voltage EN input current Oscillation frequency *5 Pch FET ON resistance *5 Nch FET ON resistance ADJ reference voltage Output voltage ITH nk current SI ITH ource urrent S C UVLO threshold voltage UVLO hysteresis voltage ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Characteristics data ■ OUT 2 [BD9102FVM] Ta=25 ℃ 1 INPUT VOLTAGE:V [V] CC Fig.1 Vcc-Vout ■ OUT 2 V =5V [BD9102FVM] CC Ta=25 ℃ 1 VOLTAGE:VEN[V] Fig.4 Ven-Vout ■I -V OUT OUT 2 V =5V [BD9102FVM] CC Ta=25 ℃ 1 OUTPUT CURRENT:I ...
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... BD9102FVM, BD9104FVM, BD9106FVM ■SW waveform I =10mA O [BD9102FVM OUT V =5V CC Ta=25 ℃ Fig.13 SW waveform TM Io=10mA(SLLM control) ■SW waveform I =200mA O [BD9102FVM OUT V =5V CC Ta=25 ℃ Fig.16 SW waveform Io=200mA(PWM control) ■Transient response I =100mA → 600mA O [BD9102FVM] V OUT I OUT V =5V CC Ta=25 ℃ Fig.19 Transient response Io=100→600mA(10μs) ■ ...
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... BD9102FVM, BD9104FVM, BD9106FVM ■Ta-V OUT 1.28 V =5V [BD9102FVM] CC 1.27 1.26 1.25 1.24 1.23 1.22 1.21 1.2 -25 - TEMPERATURE:Ta[℃] Fig.25 Ta-V OUT ■Efficiency 100 Ta=25 ℃ [BD9102FVM 100 1000 OUTPUT CURRENT:I [mA] OUT Fig.28 Efficiency (V =EN= 24V) CC OUT ■Reference characteristics 1.2 V =5V CC 1.15 1.1 1.05 1 0.95 BD9102FVM BD9104FVM 0 ...
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... TSD 1 2 ADJ ITH Fig.40 BD9106FVM Block diagram PIN function Output voltage detect pin/ ADJ for BD9106FVM GmAmp output pin/Connected phase compensation capacitor Enable pin(Active High) Ground Nch FET source pin Pch/Nch FET drain output pin Pch FET source pin VCC power supply input pin ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Information on advantages Advantage 1:Offers fast transient response with current mode control system. Conventional product (VOUT of which is 3.3 volts) V OUT I OUT Voltage drop due to sudden change in load was reduced by 50%. Advantage 2: Offers high efficiency for all load range. ・For lighter load: ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Operation BD9102FVM, BD9104FVM, BD9106FVM are the synchronous rectifying step-down switching regulator that achieves faster transient response by employing current mode PWM control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load, while it utilizes SLLM efficiency. ○Synchronous rectifier It does not require the power to be dissipated by a rectifier externally connected to a conventional DC/DC converter IC, and its P ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Description of operations ・Soft-start function EN terminal shifted to “High” activates a soft-starter to gradually establish the output voltage with the current limited during startup, by which it is possible to prevent an overshoot of output voltage and an inrush current. ・Shutdown function With EN terminal shifted to “Low”, the device turns to Standby Mode, and all the function blocks including reference voltage circuit, internal oscillator and drivers are turned to OFF. Circuit current during standby is 0 μ ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Switching regulator efficiency Efficiency ŋ may be expressed by the equation shown below: V ×I P OUT OUT OUT η= ×100[%]= Vin×Iin Pin Efficiency may be improved by reducing the switching regulator power dissipation factors P Dissipation factors resistance dissipation of inductor and FET:PD(I 2) Gate charge/discharge dissipation: ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Selection of components externally connected 1. Selection of inductor ( Δ VOUT L Co Fig.50 Output ripple current * Current exceeding the current rating of the inductor results in magnetic saturation of the inductor, which decreases efficiency. The inductor must be selected allowing sufficient margin with which the peak current may not exceed its current rating. ...
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... CR zero correction by the error amplifier (Amp.) (Min.) 1 2π×R ×C ITH ITH 5. Determination of output voltage (for BD9106FVM only) The output voltage V is determined by the equation (7): OUT V =(R2/R1+1)×V OUT V : Voltage at ADJ terminal (0.8V Typ.) ADJ With R1 and R2 adjusted, the output voltage may be determined as required.(Adjustable output voltage range: ...
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... MCR10 5102 value manufacturer 4.7μH Sumida CMD6D11B 10μF Kyocera CM316X5R106M10A 10μF Kyocera CM316X5R106M10A 750pF murata GRM18series *BD9106FVM: As the resistance recommended for RITH depends on the output voltage, check the output voltage for determination of resistance. 14/17 Technical Note V CC ① OUT C O GND ② ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●I/O equivalence circuit 1pin(V ) OUT OUT 2pin(ITH ITH 6pin(SW www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ※BD9106FVM 1pin(ADJ) 10kΩ ADJ 3pin(EN www.DataSheet.co.kr Fig.58 I/O equivalence circuit 15/17 Technical Note V CC 10kΩ ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Notes for use 1. Absolute Maximum Ratings While utmost care is taken to quality control of this product, any application that may exceed some of the absolute maximum ratings including the voltage applied and the operating temperature range may result in breakage. If broken, short-mode or open-mode may not be identified expected to encounter with special mode that may exceed the absolute maximum ratings requested to take necessary safety measures physically including insertion of fuses ...
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... BD9102FVM, BD9104FVM, BD9106FVM ●Ordering part number Part No. Part No. 9102,9104,9106 MSOP8 2.9±0.1 (MAX 3.25 include BURR) + 6° 4° −4° 1PIN MARK 0.145 0.475 S +0.05 0.22 –0.04 0.08 S 0.65 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved Package FVM: MSOP8 < ...
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... ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing ...