参数资料
型号: BD9740KN-E2
厂商: Rohm Semiconductor
文件页数: 5/15页
文件大小: 0K
描述: IC REG BUCK BST INV SYNC 48UQFN
标准包装: 2,500
类型: 降压(降压),升压(升压),反相
输出数: 7
输入电压: 1.5 V ~ 10 V
频率 - 开关: 100kHz ~ 1.2MHz
电流 - 输出: 30mA
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN
包装: 带卷 (TR)
供应商设备封装: 48-UQFN
BD9739KN,BD9740KN
● Block diagram and application circuit (BD9739KN)
Technical Note
Connect a capacitor to prevent
oscillation to the VREF pin.
(See page 7.)
Connect a
capacitor for setting
the soft start time.
(See pages 8& 9.)
Connect a
capacitor for soft
start at DTC pin.
(See page 8.)
Connect a resistor for
setting the output voltage.
(See page 8.)
For more information
about setting the SCP pin,
(See page 7.)
Connect a capacitor to prevent
oscillation to the VREGA pin.
(See page 7.)
Apply the PVCCH pin voltage
with an external charge
pump. (See page 4.)
The soft start times for CH4,
6, 7 are fixed internally.
(See page 9.)
Set the operating
frequency with the
RT and CT pins.
(See page 8.)
This pin is used as the
on/off control pin.
(See page 7.)
Set whether CH1 and CH5
will be used as step-up,
step-down or inversion.
(See page 7.)
Fig. 2 BD9739KN Application Circuit
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
5/14
2010.09 - Rev.A
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