BD9850FVM-TR Rohm Semiconductor, BD9850FVM-TR Datasheet - Page 6

• 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

(BD9851EFV)
Fig.7 Error Amp threshold voltage vs. Ambient temperature
Fig.9 (Vcc-OUT) Voltage vs. Output source current
Fig.11 V
1.015
1.005
0.995
0.985
1000
1.02
1.01
0.99
0.98
2.55
2.54
2.53
2.52
2.51
2.49
2.48
2.47
2.46
2.45
900
800
700
600
500
400
300
200
100
2.5
1
0
–40
–40
0
AMBIENT TEMPERATURE : Ta(˚C)
AMBIENT TEMPERATURE : Ta(˚C)
0.5
REF
–20
–20
(Vcc-OUT) VOLTAGE : VO(V)
vs. Ambient temperature
1
0
0
Vcc=20V
1.5
20
20
2
2.5
40
40
Vcc=12V
Vcc=4V
3
60
60
3.5
80
80
4
6/16
Fig.12 Oscillation frequency vs. Ambient temperature
Fig.10 Output voltage vs. Output sink current
1000
900
800
700
600
500
400
300
200
100
100
320
315
310
305
300
295
290
285
280
90
80
70
60
50
40
30
20
10
0
0
1.2
Fig.8 FB voltage vs. ON Duty
0
–40
fosc=1MHz
AMBIENT TEMPERATURE : Ta(˚C)
0.5
1.3
–20
DTC VOLTAGE : VDTC (V)
OUT VOLTAGE : VO (V)
0
1.4
0
1.5
fosc=300kHz
1.5
20
2
1.6
2.5
40
Vcc=20V
1.7
R
C
3
RT
CT
Vcc=12V
Vcc=4V
=24kΩ
60
=220pF
1.8
3.5
80
19
4