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Número de pieza | BD9703T | |
Descripción | Simple Step-down Switching Regulators | |
Fabricantes | ROHM Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de BD9703T (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
No Preview Available ! 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
BD9702CP-V5/T/T-V5
Output Current
1.5A
3.0A
Input Voltage
8 or Vo+3 ~ 36V
Switching Frequency
100kHz (fixed)
300kHz (fixed)
110kHz (fixed)
External Synchronization
Stand-by Function
×
○
Operating Temperature
-40 ~ +85℃
Package T
O252-5/TO220CP-V5/TO220FP-5/TO220FP-5 (V5) TO220CP-V5/TO220FP-5/TO220FP-5 (V5)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/16
2009.04- Re v.B http://www.Datasheet4U.com
1 page 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
Technical Note
100
90
80
70
60
50
40
10
100
1000
10000
OUTPUT CURRENT : IOUT[A]
6
5
4
3
2
1
0
01 2 34 56
OUTPUT CURRENT : I OUT[A]
Fig.10
EFFICIENCY-LOAD CURRENT
Fig.11
OCP VCC=20V
120
115
110
105
100 - 10
10 30 50 70 90
AMBIENT TEMPERATURE : Ta [℃]
Fig.12
fosc-Ta
5.10 5.10
VCC=30V
5.05 5.05
VCC=20V
5.00 5.00
4.95 VCC=10V
4.95
5
4
3
2
1
4.90
0 500 1000 1500 2000 2500 3000
OUTPUT CURRENT : I OUT[A]
Fig.13
OUTPUT VOLTAGE-LOAD CURRENT
4.90
01
0 20 30
INPUT VOLTAGE : VCC [V]
40
Fig.14
OUTPUT VOLTAGE-INPUT VOLTAGE
(V o=5V,Ro=5ohm)
0
10 15 20 25 30 35
INPUT VOLTAGE : VCC [V]
Fig.15
CIRCUIT CURRENT-
INPUT VOLTAGE NO LOAD
2.0 120
1.02
1.5 115
1.01
1.0 110
1.00
0.5 105
0.99
0.0
0 0.5 1 1.5 2 2.5 3
SWITCHIN G CURRENT : ISW[A]
100
0
10 203 04
INPUT VOLTAGE : VCC [V]
0
Fig.16
VOUT~OUT VOLTAGE-DRAIN CURRENT
Fig.17
fosc-INPUT VOLTAGE
0.98
-10 10 30 50 70 90
AMBIENT TEMPERATURE : Ta [℃]
Fig.18
INV THRESHOLD VOLTAGE-Ta
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
5/16
2009.04- Re v.B
5 Page BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 Technical Note
(BD9703FP/CP-V5/T/T-V5)
<Recommended Components>
Inductor L1
=47μH
Schotky Diode
D1 :RB050
C apacitor
C1=100μF(50V)
C2 =2.2μF(50V)
C3 =470μF(25V)
C4=OPEN
C3 =OPEN
(BD9702CP-V5/T/T-V5)
<Recommended Components>
Inductor L1
=47μH
Schotky Diode
D1 :RB050
C apacitor
C1=1000μF(50V)
C2 =OPEN
C3 =1000μF(25V)
C4=OPEN
C3 =OPEN
:CDRH127/LD (sumida)
LA-40 (ROHM)
:Al electric capacitor UHD1H101MPT (nichicon)
:ceramic cap CM43X7R225K50A (KYOCERA)
:Al electric capacitor UHD1E471MPT (nichicon)
:CDRH127/LD (sumida)
LA-40 (ROHM)
:Al electric capacitor UHD1H102MPT (nichicon)
:Al electric capacitor UHD1E102MPT (nichicon)
●Test Circuit
Vcc
1
+
OUT
2
GND
3
SW2
INV STBY
45
SW4
SW5
Icc A
Vcc
f
1kΩ
2kΩ
A I INV A ISTB
V INV
VSTB
+
V
Vo
SW6
Io
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
Fig.32 Input Output Measurement Circuit
11/16
2009.04- Re v.B
11 Page |
Páginas | Total 19 Páginas | |
PDF Descargar | [ Datasheet BD9703T.PDF ] |
Número de pieza | Descripción | Fabricantes |
BD9703 | (BD9703xx) 1-Channel Step-Down Switching Regulator | ROHM Semiconductor |
BD9703CP-V5 | Simple Step-down Switching Regulators | ROHM Semiconductor |
BD9703FP | Simple Step-down Switching Regulators | ROHM Semiconductor |
BD9703T | Simple Step-down Switching Regulators | ROHM Semiconductor |
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