BD9109FVM-TR Rohm Semiconductor, BD9109FVM-TR Datasheet
BD9109FVM-TR
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BD9109FVM-TR Summary of contents
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Description ROHM’s high efficiency step-down switching regulators (BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN) are the power supply designed to produce a low voltage including 1 volts from 5/3.3 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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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Absolute Maximum Rating (Ta=25℃) Parameter V voltage CC PV voltage CC EN voltage SW,ITH voltage Power dissipation 1 Power dissipation 2 Operating temperature range Storage temperature range Maximum junction temperature Pd should not be exceeded. *2 Derating in done 3.1mW/℃ for temperatures above Ta=25℃. *3 Derating in done 4.7mW/℃ for temperatures above Ta=25℃, Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB. ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Electrical Characteristics ◎BD9109FVM (Ta=25℃, V =PV CC Parameter Standby current Bias current EN Low voltage EN High voltage EN input current Oscillation frequency *9 Pch FET ON resistance *9 Nch FET ON resistance Output voltage ITH nk current SI ITH ource urrent S C UVLO threshold voltage UVLO hysteresis voltage Soft start time ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Characteristics data【BD9106FVM】 2.0 =1.8V】 【V OUT Ta=25℃ Io=0A 1.5 1.0 0.5 0 INPUT VOLTAGE:V [V] CC Fig.1 Vcc-Vout 1.85 =1.8V】 【V OUT 1.84 VCC=5V 1.83 Io=0A 1.82 1.81 1.80 1.79 1.78 1.77 1.76 1.75 -25 - TEMPERATURE:Ta[ ℃ ] Fig.4 Ta-Vout ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 1.2 1.1 1 0.9 0.8 4 4.5 5 INPUT VOLTAGE:V [V] CC Fig.10 Vcc-Fosc 【PWM control V =1.8V】 OUT SW V OUT VCC=5V Ta=25℃ Fig.13 SW waveform Io=200mA www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 【V OUT V = =EN V OUT VCC=5V Ta=25℃ Io=0A 5.5 Fig.11 Soft start waveform 【 ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Characteristics data【BD9107FVM】 2.0 =1.5V】 【V OUT Ta=25℃ Io=0A 1.5 1.0 0.5 0 INPUT VOLTAGE:V [V] CC Fig.16 Vcc-Vout 1.55 =1.5V】 【V OUT 1.54 VCC=5V 1.53 Io=0A 1.52 1.51 1.50 1.49 1.48 1.47 1.46 1.45 -25 - TEMPERATURE:Ta[ ℃ ] Fig.19 Ta-Vout ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 1.2 1.1 1 0.9 0.8 4 4.5 5 INPUT VOLTAGE:V [V] CC Fig.25 Vcc-Fosc 【PWM control V =1.5V】 OUT SW V OUT VCC=5V Ta=25℃ Fig.28 SW waveform Io=500mA www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 【V OUT V = =EN V OUT VCC=5V Ta=25℃ Io=0A 5.5 Fig.26 Soft start waveform 【 ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Characteristics data【BD9109FVM】 4.0 Ta=25℃ Io=0A 3.0 2.0 1.0 0 INPUT VOLTAGE:V [V] CC Fig.31 Vcc-Vout 3.50 VCC=5V 3.45 Io=0A 3.40 3.35 3.30 3.25 3.20 3.15 3.10 3.05 3.00 -25 - TEMPERATURE:Ta[ ℃ ] Fig. 34 Ta-Vout 0.40 VCC=5V 0.35 0.30 PMOS 0.25 0.20 NMOS 0 ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 1.2 1.1 1 0.9 0.8 4 4.5 5 INPUT VOLTAGE:V [V] CC Fig.40 Vcc-Fosc 【PWM control】 VCC=5V OUT Ta=25℃ Fig.43 SW waveform Io=500mA www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved =EN V OUT VCC=5V Ta=25℃ Io=0A 5.5 Fig.41 Soft start waveform V OUT ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Characteristics data【BD9110NV】 2.0 =1.4V】 【V OUT Ta=25℃ Io=0A 1.5 1.0 0.5 0 INPUT VOLTAGE:V [V] CC Fig.46 Vcc-Vout 1.45 =1.4V】 【V OUT 1.44 VCC=5V 1.43 Io=0A 1.42 1.41 1.40 1.39 1.38 1.37 1.36 1.35 -25 - 105 TEMPERATURE:Ta[ ℃ ] Fig ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 1.2 Ta=25℃ 1.1 1 0.9 0.8 4.5 5 INPUT VOLTAGE:V [V] CC Fig.55 Vcc-Fosc 【PWM control V =1.4V】 OUT SW V VCC=5V OUT Ta=25℃ Fig.58 SW waveform Io=500mA www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. =1.4V】 【V OUT V = =EN V OUT VCC=5V Ta=25℃ ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Characteristics data【BD9120HFN】 2.0 =1.5V】 【V OUT Ta=25℃ Io=0A 1.5 1.0 0.5 0 INPUT VOLTAGE:V [V] CC Fig.61 Vcc-Vout 1.55 =1.5V】 【V OUT 1.54 VCC=3.3V 1.53 Io=0A 1.52 1.51 1.50 1.49 1.48 1.47 1.46 1.45 -25 - TEMPERATURE:Ta[ ℃ ] Fig. 64 Ta-Vout Fig ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 1.2 Ta=25℃ 1.1 1 0.9 0.8 2.7 3.6 INPUT VOLTAGE:V [V] CC Fig.70 Vcc-Fosc 【PWM control V =1.5V】 OUT SW V VCC=3.3V OUT Ta=25℃ Fig.73 SW waveform Io=200mA www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. =1.5V】 【V OUT V = =EN V OUT VCC=3.3V Ta=25℃ ...
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... REF Amp. SLOPE 6 5 Soft Start 1 2 ADJ Fig.77 BD9106FVM,BD9107FVM Block Diagram REF Amp. 6 SLOPE V 5 Soft Start ITH OUT Fig.79. BD9109FVM Block Diagram 14/28 Technical Note Current Comp. Current Sense Protect S + CLK 6 OSC Driver Logic UVLO 5 TSD PGND 4 GND ITH ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 【BD9110NV】 ADJ ITH 3 GND 4 TOP View Fig.80 BD9110NV TOP View 【BD9120HFN】 1 ADJ ITH GND PGND 5 TOP View Fig.82 BD9120HFN TOP View www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved VREF PGND SLOPE Gm Amp Soft Start 1 3 ITH ADJ ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Pin number and function 【BD9106FVM, BD9107FVM, BD9109FVM】 Pin No. Pin name 1 ADJ/V 2 ITH GND 5 PGND 【BD9110NV】 Pin No. Pin name 1 ADJ ITH 4 GND 5 PGND 【BD9120HFN】 Pin No. Pin name 1 ADJ 2 ITH GND 5 PGND www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ...
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... Convertor Controller R ITH C ITH Fig.86 Example application www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. BD9109FVM (Load response I V OUT 228mV I OUT Fig.84 Comparison of transient response TM for lighter load, which reduces various dissipation such as ) that may otherwise cause degradation in efficiency for lighter load. ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Operation BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN are 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 operation for lighter load to improve 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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... BD9106FVM T 1 LATCH ※ In addition to current limit circuit, output short detect circuit is built in on BD9109FVM and BD9120HFN. If output voltage fall below 2V(typ, BD9109FVM) or Vout×0.5(typ,BD9120HFN), output voltage will hold turned OFF. www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Hysteresis 50～300mV ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Switching regulator efficiency Efficiency ŋ may be expressed by the equation shown below: V ×I P OUT OUT η= ×100[%]= Vin×Iin 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：PD(Gate) 3) Switching dissipation： ...
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... T ×( limit OUT Co≦ V OUT In case of BD9109FVM, for instance, and if V 1m×(2-0.8) Co≦ ≒364 [μF] 3.3 Inappropriate capacitance may cause problem in startup μF to 100 μF ceramic capacitor is recommended. 3. Selection of input capacitor (Cin Cin V ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN 4. Determination of RITH, CITH that works as a phase compensator As the Current Mode Control is designed to limit a inductor current, a pole (phase lag) appears in the low frequency area due filter consisting of a output capacitor and a load resistance, while a zero (phase lead) appears in the high frequency area due to the output capacitor and its ESR. So, the phases are easily compensated by adding a zero to the power amplifier output with C and R as described below to cancel a pole at the power amplifier ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●BD9106FVM, BD9107FVM, BD9109FVM, BD9120HFN Cautions on PC Board layout R ITH EN C ITH ③ ●BD9110NV Cautions on PC Board layout 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 capacitor CIN closer to the pins PVCC and PGND, and the output capacitor Co closer to the pin PGND. ③ ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN Table2. [BD9107FVM] Symbol Part L Coil Ceramic capacitor C IN Ceramic capacitor C O Ceramic capacitor C ITH R Resistance ITH Table3. [BD9109VM] Symbol Part L Coil Ceramic capacitor C IN Ceramic capacitor C O Ceramic capacitor C ITH R Resistance ITH Table4. [BD9110NV] Symbol Part L Coil C Ceramic capacitor IN C Ceramic capacitor ...
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... BD9120HFN】 ・EN pin 10kΩ EN ・ITH pin (BD9110NV) ITH ・ADJ pin ADJ www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ・SW pin ・VOUT pin (BD9109FVM) V OUT V CC ・SW pin ・ITH pin (BD9120HFN ITH 10kΩ Fig.104 I/O equivalence circuit ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●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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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN ●Ordering part number Part No. Part No. BD 9110 9120 9106 ,9107,9109 MSOP8 2.9±0.1 (MAX 3.25 include BURR) 4° 1PIN MARK 0.475 S +0.05 0.22 –0.04 0.08 S 0.65 HSON8 2.9±0.1 (0.05) (2.2) (MAX 3.1 include BURR) 0.475 1PIN MARK S 0.1 S 0.65 0.32± ...
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... BD9106FVM,BD9107FVM,BD9109FVM,BD9110NV,BD9120HFN SON008V5060 5.0±0.15 1PIN MARK 0.08 S 4.2±0.1 1.27 C0. +0. 0.4 -0.04 0.59 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. <Tape and Reel information> Tape Embossed carrier tape Quantity 2000pcs E2 Direction The direction is the 1pin of product is at the upper left when you hold ...
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