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STRUCTURE PRODUCT
Silicon Monolithic Integrated Circuit CMOS Type Series Regulator
TYPE
BH6733HFV
PIN DESCRIPTION Pin No. 1 2 3 4 5 6 Pin Name VIN N.C. VOUT SS GND STBY Description Input Pin No Connect Output Pin Slow Start Pin Ground Pin Output Control Pin (High:ON, Low:OFF)
1 2
VOLTAGE REFERENCE
BLOCK DIAGRAM and APPLICATION CIRCUIT
VIN VIN N.C.
CIN
VOUT
3 5
THERMAL PROTECTION
VOUT COUT
GND
OVER CURRENT PROTECTION
SS
4
VSTB
STBY
6
CONTROL BLOCK
DISCHARGE
CSS
CIN = 4.7FCeramic Fig.1 Block Diagram and Application Circuit COUT = 4.7FCeramic CSS = 4700pFCeramic ABSOLUTE MAXIMUM RATINGS (Ta=25) Parameter
Symbol
Limit
Unit V mW
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 70mmx70mmx1.6mm 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.
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OPERATING RANGE (Operating Condition are Limited by Pd) Parameter Power Supply Voltage Maximum Output Current Symbol VIN IMAX Limit 2.55.5 300 Unit V mA
ELECTRICAL CHARACTERISTICS Parameter 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 Symbol VOUT ICC ISTBY R.R. VSAT VDL VDLO ILMAX ISHORT RSTBY RDSCG VSTBH VSTBL
(Ta=25, VIN=STBY=5.0V, CIN=4.7F, COUT=4.7F, CSS=4700pF unless otherwise noted.)
Min 3.234 55 350 50 675 0.8 2.5 -0.3
Limit Typ 3.300 90 70 0.7 2 20 600 240 1350 1.2 -
Max 3.366 140 1.0 1.0 10 100 420 2000 2.0 5.5 1.1
Unit V A A dB V mV mV mA mA k k V V
Conditions
IOUT=0.1mA 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=LH STBY Threshold Voltage VIN=5.0V, STBY=HLSTBY Threshold Voltage
This product is not designed for protection against radio active rays.
OPERATING CONDITION Parameter Symbol Input Capacitor Output Capacitor CIN COUT
MIn 2.2(*2) 2.2(*2)
Typ 4.7 4.7
Max -
Unit F F
Condition Ceramic Capacitor Recommended 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.
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POWER DISSIPATION REDUCATION
0.8 0.68W 0.6 Pd(W)
0.4
0.2
0
25
50 Ta()
75 85 100
125
Fig.2 Power Dissipation Reduction PACKAGE DIMENSIONS (HVSOF6)
B J
Lot No.
[ unit : mm ]
Fig.3 Package Dimensions
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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 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 impedance of the voltage supply source connected to the VIN. The higher
ESR () 10 100
CIN=4.7F , COUT=4.7F , Temp=25
value the output capacitor goes, the more stable the whole operation becomes. This leads to high load transient response. Please confirm the whole operation on actual application board. Fig4 is the relation of IOUT and ESR.. Please confirm the whole operation on actual application board. 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.
Stable region 1
0.1
0.01 0 100 Output Current 200 IOUT (mA) 300
Fig.4 Stable region (Example)
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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. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
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Appendix1-Rev3.0

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