BD9702T Rohm Semiconductor, BD9702T Datasheet - Page 10

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

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

●Recommended Circuit
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BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5
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(BD9701FP/CP-V5/T/T-V5)
＜Recommended Components (Example)＞
＜Recommended Components example 2＞
Inductor
Schottky Diode
Capacitor
Inductor
Schotky Diode
Capacitor
Fig.31 Recommended Circuit Output Voltage 5V : Application cicuit example
STBY
5
C2
L1＝100μH
L1＝100μH
D1
C1＝100μF(50V)
C2＝OPEN
C3＝220μF(25V)
C4＝OPEN
C5＝OPEN
D1
C1＝220μF(25V)
C2＝1.0μF(50V)
C3＝470μF(16V)
C4＝150μF(20V)
C3＝OPEN
+
C1
1
3
VCC
GND
10/16
:CDRH127/LD (sumida)
:RB050LA-40 (ROHM)
:Al electric capacitor UHD1H101MPT (nichicon)
:Al electric capacitor UHD1E221MPT (nichicon)
:CDRH127/LD (sumida)
:RB050LA-40 (ROHM)
:Al electric capacitor UVR1H221MPA (nichicon)
:ceramic cap UMK212F105ZG (TAIYO YUDEN)
:Al electric capacitor UVR1E471MPA (nichicon)
:OS capacitor 20SVP150M (SANYO)
2
4
OUT
INV
D1
L1
C4
R2 : 1kΩ
R1 : 4kΩ
+
C3
5.0V
C5
Technical Note
2009.04- Rev.B