BD8966FVM-TR Rohm Semiconductor, BD8966FVM-TR Datasheet - Page 5

• Manufacturer Part Number: BD8966FVM-TR
• Description: IC SWITCHING REG W/MOSFET MSOP8
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD8966FVM-TR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 2.5 V
• Current - Output: 800mA
• Frequency - Switching: 1MHz
• Voltage - Input: 4 V ~ 5.5 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Information on advantages
© 2010 ROHM Co., Ltd. All rights reserved.
BD8966FVM
www.rohm.com
Advantage 1:Offers fast transient response with current mode control system.
Advantage 2: Offers high efficiency with synchronous rectifier
・For heavier load:
Advantage 3:・Supplied in smaller package due to small-sized power MOS FET incorporated.
R
C
ITH
ITH
Utilizes the synchronous rectifying mode and the low on-resistance MOS FETs
incorporated as power transistor.
V
Conventional product (Load response I
I
OUT
OUT
ON resistance of P-channel MOS FET : 350mΩ(Typ.)
ON resistance of N-channel MOS FET : 250mΩ(Typ.)
Reduces a mounting area required.
Convertor
Controller
DC/DC
V
CC
Voltage drop due to sudden change in load was reduced .
L
Cin
Fig.17 Comparison of transient response
・Output capacitor Co required for current mode control:10μF ceramic capacitor
・Inductance L required for the operating frequency of 1 MHz: 4.7μH inductor
Co
110mV
O
V
Fig.19 Example application
=0.1A→0.6A)
OUT
5/14
V
I
BD8966FVM (Load response I
OUT
OUT
10mm
R
C
ITH
ITH
15mm
C
C
100
IN
O
90
80
70
60
50
40
30
20
10
0
1
【V
L
OUT
OUTPUT CURRENT:I
=1.5V】
10
O
=0.1A→0.6A)
Technical Note
2010.04 - Rev.B
Fig.18
90mV
100
V
Ta=25℃
OUT
CC
1000
=5V
[mA]
10000