BD9702T Rohm Semiconductor, BD9702T Datasheet

IC REG SW 1CHAN 3A TO220FP-5

BD9702T

Manufacturer Part Number
BD9702T
Description
IC REG SW 1CHAN 3A TO220FP-5
Manufacturer
Rohm Semiconductor
Type
Step-Down (Buck)r
Datasheets

Specifications of BD9702T

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1 ~ 32 V
Current - Output
3A
Frequency - Switching
110kHz
Voltage - Input
8 ~ 36 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
TO-220-5 Full Pack (Straight Leads)
Power - Output
2W
Output Voltage
35 V
Output Current
3 A
Input Voltage
35 V
Switching Frequency
110 KHz
Operating Temperature Range
- 40 C to + 85 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
BD9702T
Manufacturer:
ROHM/罗姆
Quantity:
20 000
Part Number:
BD9702T-V5
Manufacturer:
ROHM/罗姆
Quantity:
20 000
Part Number:
BD9702T-V5
Manufacturer:
ROHM
Quantity:
13 938
Single-chip Type with Built-in FET Switching Regulator Series
Simple Step-down
Switching Regulators
with Built-in Power MOSFET
●Description
●Features
●Applications
●Line Up
© 2009 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Output Current
Input Voltage
Switching Frequency
External Synchronization
Stand-by Function
Operating Temperature
Package
BD9701FP/CP-V5/T/T-V5, BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
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.
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)
TVs, printers, DVD players, projectors, gaming devices, PCs, car audio/navigation systems, ETCs, communication equipment,
AV products, office equipment, industrial devices, and more.
BD9701FP/CP-V5/T/T-V5 BD9703FP/CP-V5/T/T-V5
TO252-5/TO220CP-V5/TO220FP-5/TO220FP-5 (V5) TO220CP-V5/TO220FP-5/TO220FP-5 (V5)
100kHz (fixed)
1.5A
1/16
300kHz (fixed)
8 or Vo+3 ~ 36V
-40 ~ +85℃
×
BD9702CP-V5/T/T-V5
110kHz (fixed)
3.0A
2009.04- Rev.B
No.09027EBT01

Related parts for BD9702T

BD9702T Summary of contents

Page 1

Single-chip Type with Built-in FET Switching Regulator Series Simple Step-down Switching Regulators with Built-in Power MOSFET BD9701FP/CP-V5/T/T-V5, BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●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 ...

Page 2

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Absolute Maximum Ratings (Ta=25℃) Parameter Supply Voltage (VCC-GND) STBY-GND OUT-GND INV-GND Maximum Switching Current 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 ...

Page 3

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) Parameter 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 ON STBY Pin ...

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BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Characteristic Data ○BD9701FP/CP-V5/T/T-V5 100 100 OUTPUT CURRENT : IOUT[A] Fig.1 EFFICIENCY-LOAD CURRENT 5.1 V VCC=30 5. VCC=20 VCC=10 4.9 0 200 400 600 800 OUTPUT CURRENT : IOUT[A] ...

Page 5

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Characteristic Data ○BD9702FP/CP-V5/T/T-V5 100 100 1000 OUTPUT CURRENT : IOUT[A] Fig.10 EFFICIENCY-LOAD CURRENT 5.10 VCC=30V 5.05 VCC=20V 5.00 4.95 VCC=10V 4.90 0 500 1000 1500 2000 2500 3000 OUTPUT CURRENT : IOUT[A] ...

Page 6

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Characteristic Data ○BD9703FP/CP-V5/T/T-V5 100 100 OUTPUT CURRENT : IOUT[A] Fig.19 EFFICIENCY-LOAD CURRENT 5.1 VCC=30V 5.05 5 VCC=20V 4.95 VCC=10V 4.9 0 200 400 600 800 1000 OUTPUT CURRENT : IOUT[A] Fig.22 OUTPUT ...

Page 7

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Block Diagram BD9701FP/CP-V5/T/T-V5, BD9703FP/CP-V5/T-V5, BD9702CP-V5/T/T-V5 TO252-5 Package Dimensions (mm) TO220CP-V5 Package Dimensions (mm) TO220FP-5 Package Dimensions (mm) www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. VCC 1 VREF PWM COMP OSC STBY 5 STBY TSD Error AMP 3 ...

Page 8

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Block Function Explanations ・VREF Generates the regulated voltage from VCC input, compensated for temperature. ・OSC Generates the triangular wave oscillation frequency using an internal resistors and capacitor. Used for PWM comparator input. ・Error AMP This block, via the INV ...

Page 9

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Notes for PCB layout C1 • Place capacitors between VCC and Ground, and the Schottky diode as close as possible to the IC to reduce noise and maximize efficiency. • Connect resistors between INV and Ground, and the output ...

Page 10

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Recommended Circuit C2 STBY 5 Fig.31 Recommended Circuit Output Voltage 5V : Application cicuit example (BD9701FP/CP-V5/T/T-V5) <Recommended Components (Example)> Inductor L1=100μH Schottky Diode Capacitor <Recommended Components example 2> Inductor L1=100μH Schotky Diode Capacitor www.rohm.com © 2009 ROHM Co., Ltd. ...

Page 11

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 (BD9703FP/CP-V5/T/T-V5) <Recommended Components> Inductor L1=47μH Schotky Diode Capacitor (BD9702CP-V5/T/T-V5) <Recommended Components> Inductor L1=47μH Schotky Diode Capacitor ●Test Circuit + Icc Vcc www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. :CDRH127/LD (sumida) D1 :RB050LA-40 (ROHM) C1=100μF(50V) :Al electric capacitor ...

Page 12

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●I/O Equivalent Circuit Pin 1 (VCC), Pin 3 (GND) VCC OUT GND ●Notes for use 1. Absolute Maximum Ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may ...

Page 13

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T- pin input This monolithic IC which (as below) has P+ substrate and betweenthe various pin. A P-N junction is formed from this P layer of each pin. For example the relation between each potential ...

Page 14

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 11. Application circuit Although we can recommend the application circuits contained herein with a relatively high degree of confidence, we ask that you verify all characteristics and specifications of the circuit as well as performance under actual conditions. Please ...

Page 15

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 ●Ordering part number Part No. Part No. 9701=36V/1.5A 9702=36V/1.5A 9703=36V/3.0A ●Package specifications TO252-5 2.3±0.2 6.5±0.2 0.5±0.1 C0.5 +0.2 5.1 -0.1 FIN 0.5±0.1 0.5 1.27 1.0±0.2 TO220FP-5 +0.3 10.0 −0.1 4.5 ...

Page 16

BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 TO220FP-5(V5) + 0.3 10.0 − 0.1 4.5 + 0.3 φ 3.2±0.1 7.0 − 0.1 1.2 0.8 0.5±0.1 1.778 8. TO220CP-V5 4.5±0.1 φ3.2±0.1 +0.3 +0.2 10.0 -0.1 2.8 -0.1 0.82±0.1 0.92 1.444 1.778 (2.85) 4.12 ...

Page 17

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 ...

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