BD9740KN-E2 Rohm Semiconductor, BD9740KN-E2 Datasheet - Page 11

• Manufacturer Part Number: BD9740KN-E2
• Description: IC SWITCH REG W/FET 48UQFN
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, PWMr

Specifications of BD9740KN-E2

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 7
• Voltage - Output: -
• Current - Output: 30mA
• Frequency - Switching: 100kHz ~ 1.2MHz
• Voltage - Input: 1.5 V ~ 10 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

BD9739KN,BD9740KN
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
PG1IN
OUT6 (power transistor connection)
PVCC (power supply input)
PGND4 (power ground)
STBY1 to STBY7 (CH1 to CH7 on/off control)
REGON (CCD REG control input)
MODE (CCD sequence control pin)
PG1IN (POWERGOOD 1 input)
PG1OUT (POWERGOOD
switch 1 output)
SWIN (load switch input pin)
SWOUT (load switch output pin)
SWIN4, 6, 7
PVCCH
VCC
STBY1 to STBY7
REGON
MODE
Vcc
PVCC
OUT6
Vcc
SWOUT4, 6, 7
PG1OUT
PGND4
Fig. 10 I/O Equivalent Circuit Diagrams (2)
DRAIN1, 2, 3H
(power MOS drain for CH1, CH2, and CH3)
DRAIN1, 2, 3L
(power MOS drain for CH1, CH2, and CH3)
PGND1, 23 (output step ground)
VBAT2 (battery input [driver block])
OUT1B (CH1 power transistor collector output)
FB (error amp output)
Vcc
Vcc
Vcc
11/14
FB1 to FB7
PGND1,23
DRAIN1,2,3H
DRAIN1,2,3L
VBAT2
OUT1B
7CH (power transistor drain output)
Vcc
SS2 (soft start capacitor connection pin)
SYNC_DTC (synchronous
rectification delay time setting pin)
SWOUT1, 4 (load switch output pin)
PG23 (POWERGOOD switch 23 output)
SYNC_DT
C
OUT5 (power transistor connection)
SS2
MAIN4 (CH4 main output)
SUB4 (CH4 sub output)
PGND4
OUT7B
Vcc VREGA
Vcc
Technical Note
2010.09 - Rev.A
Vcc
Vcc
VREGA
Vcc
SWOUT1, 4
PG23
PVCC
MAIN4
SUB4
OUT5
PGND4