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BD9006F Datasheet(PDF) 7 Page - Rohm

Part # BD9006F
Description  Flexible Step-down Switching Regulators with Built-in Power MOSFET
PDF  18 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BD9006F Datasheet(HTML) 7 Page - Rohm

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BD9006F, BD9006HFP, BD9007F, BD9007HFP
Technical Note
7/17
www.rohm.com
2009.05 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●
Block Diagrams / Application circuit / PIN assignment
No.
Pin name
Function
No.
Pin name
Function
1
PVIN
Power system power supply input
1
VIN
Power supply input
2
SW
Output
2
SW
Output
3
FB
Error Amp output
3
FB
Error Amp output
4
INV
Output voltage feedback
4
GND
Ground
5
EN/SYNC Enable/Synchronizing pulse input
5
INV
Output voltage feedback
6
RT
Frequency setting resistor connection
6
RT
Frequency setting resistor connection
7
GND
Ground
7
EN/SYNC Enable/Synchronizing pulse input
8
VIN
Power supply input
FIN
-
Ground
*VIN and PVIN must be shorted before use
Fig.19
Fig.20
(BD9006F,BD9007F)
(BD9006HFP,BD9007HFP)
VIN
RT
GND EN/SYNC
PVIN FB
SW
INV
VIN FB INV EN/SYNC
SW GND RT
EN/SYNC
220μF
+
2μF
330μF
+
15 KΩ
47kΩ
33μH
5V
30 KΩ
22000pF
Vo
51 KΩ
VREG
４
-
+
-
+
0.8V
PWM
COMPARATOR
DRIVER
２
７
５
GND
VIN
INV
SW
８
６
３
FB
RT
CURRENT LIMIT
+
-
ERROR AMP
Slope
+
SYNC
OSC
SDWN
Reset
DRV
Set
SDWN
UVLO/
TSD
Internal
Bias
１
PVIN
SOFT
START
EN/SYNC
220μF
+
2μF
330μF
+
15 KΩ
47 KΩ
33μH
5V
Vo
51 KΩ
Vref
５
-
+
-
+
0.8V
PWM
COMPARATOR
DRIVER
４
７
GND
VIN
INV
SW
１
６
FB
RT
CURRENT LIMIT
+
-
ERROR AMP
Slope
SOFT
START
+
SYNC
OSC
SDWN
Reset
DRV
Set
SDWN
UVLO/
TSD
Internal
Bias
３
２
30 KΩ
22000pF



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