bd95514muv ROHM Co. Ltd., bd95514muv Datasheet
bd95514muv
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bd95514muv Summary of contents
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... BD95514MUV ●Description BD95514MUV is a switching regulator capable of supplying high current output (up to 4A) at low output voltages (0.7V~5.0V) over a broad range of input voltages (4.5V~28V). The regulator features an internal N-MOSFET power transistor for high efficiency and low space consumption, while incorporating ROHM’s proprietary H the industry’ ...
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... BD95514MUV ●Absolute Maximum Ratings (Ta=25°C) Parameter Input Voltage 1 Input Voltage 2 Input Voltage 3 Input Voltage 4 External VCC Voltage BOOT Voltage BOOT-SW Voltage Output Feedback Voltage SS/FS/MODE Voltage V Voltage REG EN/CTL Input Voltage PGOOD Voltage Output Current (Average) Power Dissipation 1 Power Dissipation 2 Power Dissipation 3 ...
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... BD95514MUV ●ELECTRICAL CHARACTERISTICS (unless otherwise noted, Ta=25℃, AV Parameter [Whole Device block] AV bias current bias current standby current N EN Low voltage EN High voltage EN bias current CTL Low voltage CTL High voltage CTL bias current [5V Linear regulator block ] V output voltage REG ...
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... BD95514MUV ●Reference Data 100 SLLM 80 60 Continuous Mode 0.01 0 [A] Fig.1 Io-Efficiency (V =7V,V =2.5V) IN OUT 2μsec/div VOUT (50mV/div) SW (10V/div) IOUT (2A/div) Fig.4 Transient Response (V =7V, V =2.5V) IN OUT 2μsec/div VOUT (50mV/div) SW (10V/div) IOUT (2A/div) Fig.7 Transient Response (V =7V, V =2.5V) IN OUT 200μsec/div ...
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... BD95514MUV ●Reference Data 400μsec/div EN V REG 2[V/div] V OUT 2[V/div] SW Fig.13 EN wake up ●Block Diagram V REG REG 10 Reference AV Block 8 CTL V ×0.85 REF V ×0.85 SS REF(0.7V) V OUT V REG 17 Power 6 Good PGOOD EXTV Reg 15 V REG www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ...
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... BD95514MUV ●Pin Configuration PGND PGND *Connect the underside (FIN) to the ground terminal *Connect the underside (FIN) to the ground terminal ●Pin Function Table PIN No. PIN Name 1 BOOT 6 PGOOD CTL 9 MODE GND 13 VCC 14 EXTVCC 15 V REG ...
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... IN The BD95514MUV controls the duty cycle and output voltage based upon the input voltage at this pin, so voltage variations or oscillations on this line can cause operation to become unstable. This pin also acts as the voltage input for the switching block, so insufficient coupling impedance can also cause operation to become unstable. Therefore, this line should be bypassed with either a power capacitor or RC filter. ・ ...
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... BD95514MUV ●Operation The BD95514MUV is a switching regulator incorporating ROHM’s proprietary H drops suddenly due to changes in load, the system quickly restores the output voltage by extending the t When V OUT interval. This improves the regulator’s transient response. When light-load mode is activated, the IC employs the Simple Light Load Mode (SLLM) controller, further improving system efficiency ...
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... BD95514MUV ●Timing Chart ・Soft Start Function OUT I IN ・Timer Latch-type Short Circuit Protection V ×0.70 REF V OUT 1ms SCP EN/UVLO ・Output Over-Voltage Protection V ×1.2 REF V OUT HG LG Switching www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. The soft start function is enabled when the EN pin is set high ...
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... BD95514MUV ●External 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. In selecting the inductor, be sure to allow enough margin to assure that peak current does not exceed the inductor’ ...
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... RFS[kΩ] The BD95514MUV operates by feeding the output voltage back through a resistive voltage divider. The output voltage is set by the following equation (see schematic below): Output Voltage = The switching frequency is also amplified by the same resistive voltage divider network: REF(0.7V) ...
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... RSX501L-20 - TDZ5.1 3.2μH CDEP105-3R2MC-50 - BD95514MUV 2009.04 - Rev.B VOUT GND_VOUT GND_VDD REF VDD PGND Company - - - - - - - - - - - SANYO - - - - - ROHM ROHM Sumida ROHM ...
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... It is not designed to protect the IC or guarantee its operation. Do not continue to use the IC if this circuit is activated environments in which activation of this circuitry can be assumed. BD95514MUV (10) Testing on application boards When testing the IC with application boards, connecting capacitors directly to low-impedance terminals can subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’ ...
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... BD95514MUV (11) Regarding IC input pins This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. PN junctions are formed at the intersection of these P layers with the N layers of other elements, creating parasitic diodes and/or transistors. For example (refer to the figure below): ・ ...
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... BD95514MUV ●Ordering part number Part No. Part No. VQFN032V5050 5.0±0.1 1PIN MARK S 0.08 S 3.4±0.1 C0 0.75 +0.05 0.5 0.25 -0.04 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved Package MUV : VQFN032V5050 <Tape and Reel information> Tape Embossed carrier tape Quantity 2500pcs ...
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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 ...