BD9775FV-E2 Rohm Semiconductor, BD9775FV-E2 Datasheet - Page 25

• Manufacturer Part Number: BD9775FV-E2
• Description: IC REG SW STEP DOWN HE 28-SSOP
• Manufacturer: Rohm Semiconductor
• Type: Step-Down (Buck)r

Specifications of BD9775FV-E2

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Current - Output: 400mA
• Frequency - Switching: 100kHz
• Voltage - Input: 6 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Power - Output: 640mW
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: BD9775FV-E2TR

● Timing Chart (BD9775FV)
● I/O EQUIVALENT CIRCUIT (BD9775FV)
・ Over Current Protection, Short Circuit Protection, Thermal Shut Down
・ Output ON/OFF, Minimum Input （ UVLO ）
0.7×fixed output voltage
Half short of output
VREF
VREF
OCP detection level
VCC
CTL1
DTC1
Vout1
CTL2
DTC2
Vout2
CTL1,2
SCP
DTC1,2
Iout1,2
INV1(2),INV2(10)
VREF
VREF
Vout1,2
OCP is activated by detecting 8 consecutive cycles
FB1(1)
Stand-by
VREGA
VCC
VCC
VREGA
Inactivate half-short
Soft start
INV1,2
INV1，2
1.0V
VCC
VCC
1.0V
FB1
FB1
1.0V
Activate SCP
2.0V
UVLO is activated at 5.7V
VREF
25/29
Fig.8
VREF
Fig.5
Fig.6
Fig.7
FB2(11)
CT(4)
VREF
VREF
6.0V
VREGA
Reset the latch by restarting CTL
Activate TSD
VREGA
VCC
VCC
VCC
VCC
UVLO is inactivated
at 5.8V
Inactivate TSD
VREF
VREF
VREG
VREF
FIN(5)
RT(3)
VCC
VCC
VCC
VCC
RT
RT
FIN
FIN