BD9140MUV-E2 Rohm Semiconductor, BD9140MUV-E2 Datasheet
BD9140MUV-E2
Specifications of BD9140MUV-E2
Related parts for BD9140MUV-E2
BD9140MUV-E2 Summary of contents
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Single-chip Type with Built-in FET Switching Regulator Series Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET BD9141MUV ●Description ROHM’s high efficiency step-down switching regulator BD9141MUV is a power supply designed to produce a low voltage including ...
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BD9141MUV ●Electrical Characteristics ◎(Ta=25℃, V =PV =8.0V, EN Parameter Standby current Bias current EN Low voltage EN High voltage EN input current Oscillation frequency Pch FET ON resistance Nch FET ON resistance ADJ Voltage ITH nk current SI ...
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BD9141MUV ●Characteristics data 6.0 【V =5V】 OUT 5.0 Ta=25℃ Io=2A 4.0 3.0 2.0 1.0 0 INPUT VOLTAGE:V [V] CC Fig OUT 5.20 =5V】 【V OUT 5.15 VCC=8V Io=0A 5.10 5.05 ...
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BD9141MUV 530 520 510 Ta=25℃ 500 490 480 470 INPUT VOLTAGE:V [V] CC Fig. OSC 【PWM control V =5V】 OUT SW V OUT VCC=8V Ta=25℃ Fig.15 SW waveform ...
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BD9141MUV ●Information on advantages Advantage 1：Offers fast transient response with current mode control system. Conventional product (Load response I V OUT I OUT Voltage drop due to sudden change in load was reduced by about 50%. Advantage 2： Offers high ...
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BD9141MUV ●Operation BD9141MUV is a 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 (Simple ...
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BD9141MUV ●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 ...
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BD9141MUV ●Switching regulator efficiency Efficiency ŋ may be expressed by the equation shown below ×I OUT OUT OUT η= ×100[%]= Vin×Iin Pin Efficiency may be improved by reducing the switching regulator power dissipation factors P Dissipation factors: 1) ...
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BD9141MUV ●Selection of components externally connected 1. Selection of inductor ( Δ OUT L Co Fig.27 Output ripple current ＊Current exceeding the current rating of the inductor results in magnetic saturation of the ...
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... Increasing capacitance of the output capacitor lowers the pole frequency while the zero frequency does not change. because when the capacitance is doubled, the capacitor ESR reduces to half.) fz (Amp.) 10/15 Technical Note ) [A]・・・(5) I OUT = RMS 2 2A, (BD9140MUV) ] RMS O × [Hz]←with lighter load 2π×R ×C OMax [Hz] ← ...
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BD9141MUV Cin , OUT OUT ITH GND,PGND R ITH C ITH Fig.32 Typical application Stable feedback loop may be achieved by canceling the pole fp (Min.) produced by the output capacitor and the ...
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BD9141MUV ●BD9141MUV Cautions on PC Board layout VREG R ITH ③ C ITH ① For the sections drawn with heavy line, use thick conductor pattern as short as possible. ② Lay out the input ceramic ...
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BD9141MUV ●I/O equivalence circuit ・EN pin EN ・ADJ pin ADJ V ・VREG pin CC VREG www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ・SW pin SW ・ITH pin ITH V CC Fig.35 I/O equivalence circuit 13/15 Technical Note PV ...
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BD9141MUV ●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 ...
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BD9141MUV ●Ordering part number Part No. Part No. VQFN020V4040 4.0±0.1 1PIN MARK 0.08 S 2.1±0.1 C0.2 0 +0.05 0.25 1.0 -0.04 www.rohm.com © 2009 ROHM Co., Ltd. All ...
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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 purpose ...