Document
Single-chip Type with Built-in FET Switching Regulator Series
Simple Step-down Switching Regulators with Built-in Power MOSFET
BD9701F P/CP-V5/T/T-V5, BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
No.09027EBT01
●Description The BD9701/BD9703/BD9702 are single-channel step-down switching regulator capable of PWM operation. The Pch MOS FET is built in for high efficiency in small load area.Lower electricity consumption of operating current 4mA (Typ) and stand-by current 0uA(Typ) is realized by adopting Bi-CMOS process.
●Features 1) Maximum switching current: 1.5A(BD9701/BD9703), 3A(BD9702) 2) Built-in Pch FET ensures high efficiency 3) Output voltage adjustable via external resistors 4) High switching frequency: 100kHz (BD9701), 300kHz(BD9703), 110kHz(BD9702) 5) Overcurrent and thermal shutdown protection circuits built in 6) ON/OFF control via STBY pin 7) Small surface mount TO252-5 package (only BD9701FP, BD9703FP) ●Applications TVs, printers, DVD players, projectors, gaming devices, PCs, car audio/navigation systems, ETCs, communication equipment, AV products, office equipment, industrial devices, and more. ●Line Up BD9701FP/CP-V5/T/T-V5 BD9703FP/CP-V5/T/T-V5 Output Current Input Voltage Switching Frequency External Synchronization Stand-by Function Operating Temperature Package T 100kHz (fixed) 1.5A 8 or Vo+3 ~ 36V 300kHz (fixed) × ○ -40 ~ +85℃ O252-5/TO220CP-V5/TO220FP-5/TO220FP-5 (V5) TO220CP-V5/TO220FP-5/TO220FP-5 (V5) BD9702CP-V5/T/T-V5 3.0A 110kHz (fixed)
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1/16
2009.04- Re v.B
http://www.Datasheet4U.com
BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
●Absolute Maximum Ratings (Ta=25℃) Parameter S Supply Voltage (VCC-GND) STBY-GND V OUT-GND V INV-GND V BD9701/BD9703 Maximum Switching Current BD9702 Power Dissipation Operating Temperature Storage Temperature
*1 Without external heat sink, the power dissipation reduces by 6.4mW/℃ over 25℃. *2 Without external heat sink, the power dissipation reduces by 16.0mW/℃ over 25℃. Reduced by 160mW/℃, when mounted on Infinity size heatsink.
Technical Note
ymbol VCC
STBY O
Ratings 36
Unit V V V V
36
36 10 1.5
INV
Iout 3 0.8 (*1) Pd TO220 Topr Tstg 2(*2) -40~+85 -55~+150 TO252
A
W ℃ ℃
●Operating Conditions(Ta=-40~+85℃) Parameter S Input Voltage Output Voltage ymbol VCC Vo Limit MIN 8.0 or Vo+3(*3) 1.0 TYP MAX 35.0 32 Unit V V
*3The minimum value of an input voltage is the higher either 8.0V or Vo+3
●Electrical Characteristics ○BD9701FP/CP-V5/T/T-V5 (Unless otherwise noted, Ta=25℃,VCC=12V,Vo=5V,STBY=3V) Limit Parameter S Output ON Resistance Efficiency Switching Frequency Load Regulation Line Regulation Over Current Protection Limit INV Pin Threshold Voltage INV Pin Threshold Voltage Thermal Variation INV Pin Input Current STBY Pin Threshold Voltage STBY Pin Input Current Circuit Current Stand-by Current
This product is not designed to be resistant to radiation.
ymbol MIN T Ron ηfosc ΔVOLOAD ΔVOLINE Iocp VINV ΔVINV IINV ON OFF VSTBYON 2.0 VSTBYOFF Istby Icc Ist -0.3 5 25 4 0 1.6 0.98 80 YP 1.0 86 100 10 40 1.00 ±0.5 1 MAX 1.5 120 40 100 1.02 36 0.3 50 12 5
Unit Ω desi % kHz mV mV A V % μA V V μA mA μA
Conditions gn guarantee
Io=0.5A design guarantee
VCC=20V,Io=0.5~1.5A VCC=10~30V,Io=1.0A
Tj=0~85℃ design guarantee VINV=1.0V
STBY=3V
STBY=0V
www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved.
2/16
2009.04- Re v.B
BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
●Electrical Characteristics ○BD9703FP/CP-V5/T/T-V5 (Unless otherwise noted, Ta=25℃,VCC=12V,Vo=5V,STBY=3V) Limit Parameter S Output ON Resistance Efficiency Switching Frequency Load Regulation Line Regulation Over Current Protection Limit INV Pin Threshold Voltage INV Pin Threshold Voltage Thermal Variation INV Pin Input Current STBY Pin Threshold Voltage STBY Pin Input Current Circuit Current Stand-by Current ON OFF ymbol MIN T Ron η fosc ΔVOLOAD ΔVOLINE Iocp VINV ΔVINV IINV VSTBYON 2.0 VSTBYOFF Istby Icc Ist -0.3 5 25 5 0 1.6 0.98 - 86 270 300 10 40 1.00 ±0.5 1 330 40 100 1.02 36 0.3 50 12 5 YP 1.0 MAX 1.5 Ω desi % kHz mV mV A V % μA V V μA mA μA STBY=3V Unit
Technical Note
Conditions gn guarantee
Io=0.5A design guarantee
VCC=20V,Io=0.5~1.5A VCC=10~30V,Io=1.0A
Tj=0~85℃ design guarantee VINV=1.0V
STBY=0V
●Electrical Characteristics ○BD9702FP/CP-V5/T/T-V5 (Unless otherwise noted, Ta=25℃,VCC=12V,Vo=5V,STBY=3V) Limit Parameter S Output ON Resistance Efficiency Switching Frequency Load Regulation Line Regulation Over Current Protection Limit INV Pin Threshold Voltage INV Pin Threshold Voltage Thermal Variation INV Pin Input Current STBY Pin Threshold Voltage STBY Pin Input Current Circuit Current Stand-by Current ON OFF ymbol MIN Ron η fosc ΔVOLOAD ΔVOLINE Iocp VINV ΔVINV IINV VSTBYON 2.0 VSTBYOFF Istby Icc Ist -0.3 5 25 4 0 3.2 0.98 - 86 88 110 10 40 1.00 ±0.5 1 132 40 100 1.02 36 0.3 50 12 5 TYP 0.5 MAX 1.5 Ω desi % kHz mV mV A V % μA V V μA mA μA STBY=0V STBY=3V Tj=0~85℃ design guarantee VINV=.