bd9180gul ROHM Co. Ltd., bd9180gul Datasheet
bd9180gul
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bd9180gul Summary of contents
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... The BD9180GUL is a step-down Switching regulator designed to produce a low voltage from 1-cell Li-Ion batteries. The BD9180GUL is suitable for low power application,and an internally set 2MHz switching frequency allows the use of small inductors and capacitors to achieve a small application.Offers high efficiency with our original pulse skip control technology and synchronous rectifier ...
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CHARACTERISTICS (Unless otherwise specified, Ta=25℃, V Parameter Standby Current Bias Current EN Low Voltage EN High Voltage EN Input Current Oscillation Frequency Pch FET ON Resistance Nch FET ON Resistance Output Voltage UVLO Threshold Voltage UVLO Release Voltage Soft ...
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Diagram N.C.A1 A2 VOUT VCC C1 C2 GND TOP View VCSP50L1 Fig.1 Pin Distribution AA Lot. No. VCSP50L1 Fig.3 Physical Dimension VOUT Current Comp R Gm Amp S Slope Soft GND Start EN GND Vcc ...
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... Ta=25 ℃ Io=0mA V =1.875V OUT 1.5 1.0 0.5 0 INPUT VOLTAGE:V [V] CC Fig.4 Vcc-VOUT 1.94 1.92 VCC=3.3V, V =1.875V, Io=0mA OUT 1.90 1.88 1.86 1.84 1.82 - TEMPERATURE:Ta[℃] Fig.7 Ta-VOUT 2.2 Ta=25 ℃ 2.1 2.0 1.9 1 INPUT VOLTAGE:V [V] CC Fig.10 Vcc-Fosc 230 VCC=3.3V 220 210 200 190 180 ...
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... EN V OUT VCC=3.3V Ta=25 ℃ Fig.15 Soft start waveform (Io=0mA OUT VCC=3.3V, Ta=25 ℃ Fig.19 SW start waveform (Io=300mA) VCC=3.3V Ta=25 ℃ OUT=1.875 V OUT I OUT Fig.22 Transient Response Io=50→200mA/μs EN VCC=3.3V V OUT Ta=25 ℃ Fig.16 Soft start waveform (Io=300mA) VCC=3 ...
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... Advantage 1：Offers fast transient response with current mode control system. BD9180GUL(transient response I VCC=3.3V, V =1.2V, Ta=25 ℃ OUT1 V OUT1 I OUT1 Io=1→50mA Advantage 2： Offers high efficiency for all load range. ・For lighter load: Utilizes the current mode control mode called SLLM for lighter load, which reduces various dissipation such as switching ...
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BD919□GUL is a synchronous rectifying dual 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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The device has a separate EN pin for esch converter to start up each converter independently. If EN1 and EN2 are set to Low(<0.3V), all circuits are OFF and the device is Stand by mode.(I ...
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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 ...
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Selection of inductor ( Δ OUT L Co Fig.33 Output ripple current *A 1to4.7uH inductor is recommended to be steady operation and achieve a small application. Current ...
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Selection of input capacitor (Cin Cin V OUT L Co Fig.35 Input capacitor A low ESR 4.7μF/10V ceramic capacitor is recommended to reduce ESR dissipation of input capacitor for better efficiency. VCC ●Cautions on PC Board layout ...
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Lists on above application Symbol Part L Coil C Ceramic capacitor i C Ceramic capacitor O *The parts list presented above is an example of recommended parts. Although the parts are sound, actual circuit characteristics should be checked ...
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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 ...
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Type Designations (Selections) for Ordering Package type Product name ・ BD9180 VCSP50L1 <Dimension> 1PIN MARK Top View 1.1±0.05 S Side View S 0.08 6- 0.25±0. 0. 0.15)INDEX POST B Bottom View 1 ...
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Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...