BD9850FVM-TR Rohm Semiconductor, BD9850FVM-TR Datasheet - Page 3

• Manufacturer Part Number: BD9850FVM-TR
• Description: IC REG SW STEP DOWN HI EFF 8MSOP
• Manufacturer: Rohm Semiconductor
• Type: Step-Down (Buck)r
• Series: -r

Specifications of BD9850FVM-TR

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Current - Output: 200mA
• Frequency - Switching: 100kHz ~ 2MHz
• Voltage - Input: 4 ~ 9 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Power - Output: 587mW
• Mounting Style: SMD/SMT
• Pwm Type: Controller
• Frequency - Max: 2MHz
• Duty Cycle: -
• Voltage - Supply: 4 V ~ 9 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Electrical characteristics (Unless otherwise specified, Ta=25˚C, Vcc=7V, fosc=600kHz)
*
*
Design guarantee
Not designed to be radiation-resistant.
[Oscillator block]
Oscillation frequency
Frequency regulation
Oscillator amplitude voltage
[Soft start / SW block]
CTL/ SS pin sink current
CTL / SS pin clamp voltage
CTL threshold voltage
[PWM comparator block]
0% threshold voltage
100% threshold voltage
[Error Amp block]
Threshold voltage
Frequency bandwidth
Voltage gain
Input bias current
Maximum output voltage
Minimum output voltage
Output source current
Output sink current
[V
V
F
V
[Total device]
Standby current
Average supply current
[Output block]
ON resistance
Output transient time
[Under voltage lockout block]
Threshold voltage
Hysteresis width
BD9850FVM
REF
REF
REF
REF
load regulation
output voltage
current capacitance
block]
Item
VCTLTH
Symbol
ΔV
VUThy
Vpptr
D100
IV
ICCA
Tr/ Tf
VCH
ICCS
fosc
FDV
V
VUT
VSS
VCL
IOO
R
BW
ISS
D0
V
IOl
Av
IIB
REF
REFl0
ON
REF
IN
–1.90
2.475
–150
0.98
–3.1
0.05
min.
510
–45
420
2.2
1.2
1.5
2.0
1.5
2.3
3.4
0.9
3.7
–5
12
–
–
–
–
–
Limits
–1.00
2.500
1.00
0.03
–1.6
0.10
Typ.
600
–70
–16
610
3/16
0.5
2.4
1.3
1.6
2.1
3.0
2.4
5.0
2.5
3.8
70
50
20
0
–
2.525
max.
1.00
1.02
0.20
–1.0
0.15
690
125
960
2.6
1.4
1.7
2.2
2.6
7.8
8.0
3.9
10
–1
5
–
–
–
–
–
MHz
nsec
kHz
Unit
mA
mA
mV
mA
mA
μA
dB
hA
μA
%
Ω
V
V
V
V
V
V
V
V
V
V
V
R
Vcc = 4V to 9V
V
fosc = 600kHz
fosc = 600kHz
AV = 0dB
V
V
I
I
At no load
Cout = 1000pF
Vcc sweep down
*
*
VREF
VREF
RT
CTL/SS
FB
FB
= 24kΩ
= 1.0V
= 1.0V
= 0mA
= 0mA to –1mA
= 1.5V
Conditions
*
*