1/4 STRUCTURE Silicon Monolithic Integrated Circuit PRODUCT CMOS Type Series Regulator TYPE BH6733HFV ○ BLOCK DIAGRAM and APPLICATION CIRCUIT VIN ○ PIN DESCRIPTION VIN N.C. 1 2 VOLTAGE REFERENCE CIN VOUT VOUT 3 GND 5 COUT THERMAL PROTECTION OVER CURRENT PROTECTION SS 4 VSTB STBY 6 CONTROL BLOCK DISCHARGE CSS Pin No. 1 2 3 4 5 Pin Name VIN N.C. VOUT SS GND 6 STBY Description Input Pin No Connect Output Pin Slow Start Pin Ground Pin Output Control Pin (High:ON, Low:OFF) CIN = 4.7μF（Ceramic） Fig.1 Block Diagram and Application Circuit COUT = 4.7μF（Ceramic） CSS = 4700pF（Ceramic） ○ ABSOLUTE MAXIMUM RATINGS (Ta=25℃) Parameter Symbol Limit Unit Power Supply Voltage VMAX -0.3 ～ +6.5 Power Dissipation Pd 680 (*1) Maximum junction temperature TjMAX +125 Operating Temperature Range Topr -40 ～ +85 Storage Temperature Range Tstg -55 ～ +125 (*1) Pd derated at 6.8mW/℃ for temperature above Ta=25℃, mounted on 70mm×70mm×1.6mm glass-epoxy PCB. Status of this document The Japanese version of this document is the official specification. Please use the translation version of this document as a reference to expedite understanding of the official version. If there is any uncertainty in translation version of this document, official version takes priority. REV. B V mW ℃ ℃ ℃ 2/4 ○ OPERATING RANGE (Operating Condition are Limited by Pd) Parameter Symbol Limit Unit Power Supply Voltage VIN 2.5～5.5 V Maximum Output Current IMAX 300 mA ○ ELECTRICAL CHARACTERISTICS (Ta=25℃, VIN=STBY=5.0V, CIN=4.7μF, COUT=4.7μF, CSS=4700pF unless otherwise noted.) Min Limit Typ Max VOUT ICC ISTBY R.R. VSAT VDL VDLO 3.234 55 - 3.300 90 70 0.7 2 20 ILMAX ISHORT 350 50 RSTBY RDSCG VSTBH VSTBL 675 0.8 2.5 -0.3 Parameter Symbol 【Regulator】 Output Voltage Circuit Current Circuit Current (STBY) Ripple Rejection Ratio Dropout Voltage Line Regulation Load Regulation 【Over Current Protection】 Limit Current Short Current 【Stand-by】 STBY Pull Down Resistor Discharge Resistor ON STBY Control Voltage OFF Unit Conditions 3.366 140 1.0 1.0 10 100 V μA μA dB V mV mV IOUT=0.1mA 600 240 420 mA mA 1350 1.2 - 2000 2.0 5.5 1.1 kΩ kΩ V V IOUT=0mA, VIN Pin Monitor STBY=0V VIN=5.0V, VRR=-10dBv, fRR=1kHz, IOUT=10mA VIN=0.95*VOUT, IOUT=300mA VIN=VOUT+1.0V to 5.5V, IOUT=0.1mA IOUT=1mA to 300mA Vo=VOUT*0.9 Vo=0V VIN=5.0V, STBY=0V VIN=5.0V, STBY=L→H STBY Threshold Voltage VIN=5.0V, STBY=H→LSTBY Threshold Voltage ●This product is not designed for protection against radio active rays. ○ OPERATING CONDITION Parameter Symbol MIn Typ Max Unit Condition Input Capacitor CIN 2.2(*2) 4.7 - μF Ceramic Capacitor Recommended Output Capacitor COUT 2.2(*2) 4.7 - μF Ceramic Capacitor Recommended (*2) Make sure that the output capacitor value is not kept lower than this specified level across a variety of temperature, DC bias characteristic. And also make sure that the capacitor value cannot change as time progresses. REV. B 3/4 ○ POWER DISSIPATION REDUCATION 0.8 0.68W Pd(W) 0.6 0.4 0.2 0 25 75 85 100 50 125 Ta(℃) Fig.2 Power Dissipation Reduction ○ PACKAGE DIMENSIONS (HVSOF6) B J □ □□□ Lot No. [ unit : mm ] Fig.3 Package Dimensions REV. B 4/4 ○ ORERATION NOTES 1.) Absolute Maximum Ratings This product is produced with strict quality control, however, may be destroyed if it is operated beyond its absolute maximum ratings. If the device is destroyed in exceeding the recommended maximum ratings, the failure mode will be difficult to determine (E.g. short mode, open mode). Therefore, physical protection counter-measures (like fuse) should be implemented when operating conditions are beyond the absolute maximum ratings specified. 2.) GND Potential GND potential must be the lowest potential no matter what may happen. Actually, including transitional states, all pins except GND must not be the voltage below GND. 3.) Setting of Heat Consider Pd of actually using states, carry out the heat design that have adequate margin. 4.) Pin Short and Mistake Fitting When mounting the IC on the PCB, pay attention to the orientation of the IC. If there is a placement mistake, the IC may be burned up. 5.) Actions in Strong Magnetic Field Using the IC within a strong magnetic field may cause a malfunction. 6.) Mutual Impedance Use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as possible. Use a capacitor to keep ripple to a minimum. 7.) Voltage of STBY Pin For standby mode, set STBY voltage below 1.1V. For normal operation, set the pin voltage beyond 2.5V. It is not recommended to set STBY voltage between 1.1V and 2.5V, and it may cause improper operation. And, please be sure to turn STBY Control Voltage ON from OFF after applying Operating Voltage on VIN pin. 8.) Over Current Protection Circuit Over current and short circuit protection is built-in at the output, and IC destruction is prevented at the time of load short circuit. These protection circuits is effective in the destructive prevention by the sudden accident, please avoid use to which a protection circuit operates continuously. 9.) Thermal Shutdown This IC has Thermal Shutdown Circuit (TSD Circuit). When the temperature of IC Chip is higher than 175℃, the output turned off by TSD Circuit. TSD Circuit is only designed for protecting IC from thermal over load, therefore it is not recommended that you design the application as TSD working in normally condition. 10.) SS Pin SS pin can drive quite small current, because the pin is directly connected to reference voltage circuit. It may be that output voltage is dropping when the load of SS pin is more than 100nA. If the pin is connected to a capacitor, please use a ceramic capacitor for small leak current. Please take care that output noise is smaller as SS pin capacitor is larger, but startup time is longer. 11.) Input / Output Capacitor CIN=4.7μF , COUT=4.7μF , Temp=25℃ 100 Mounting input capacitor between input pin and GND (as close to pin as possible), and also output capacitor between output pin and GND (as close to pin as possible) is recommended. The input capacitor reduces the output 10 value the output capacitor goes, the more stable the whole operation becomes. This leads to high load transient response. Please confirm the ESR (Ω) impedance of the voltage supply source connected to the VIN. The higher Stable region 1 whole operation on actual application board. Fig4 is the relation of IOUT and ESR.. Please confirm the whole operation on actual application board. 0.1 Generally, ceramic capacitor has wide range of tolerance, temperature coefficient, and DC bias characteristic. And also its value goes lower as time progresses. Please choose ceramic capacitors after obtaining more detailed data by asking capacitor makers. 0.01 0 100 Output Current 200 IOUT (mA) Fig.4 Stable region (Example) REV. B 300 Appendix Notes 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 of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. 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