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参数资料
| 型号： | BD9740KN-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/15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： | 是 |
| 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 |
Regulators ICs for Digital Cameras and Camcorders
System Switching Regulator ICs
with Built-in FET (10V)
BD9739KN, BD9740KN
● Description
The 7-channel switching regulators include built-in FETs, and are designed for use in digital still cameras.
They feature built-in power FETs and soft start functionality, reducing the number of external components.
● Features
1) Wide supply voltage range: 1.5 V to 10 V
2) High-precision reference voltage: ± 1%
3) Built-in shutdown circuit for overload (timer-latch type)
4) Oscillator frequency is user-adjustable
5) Built-in thermal shutdown circuit
6) Standby mode current: 0 μ A
7) Built-in load switch circuit
8) Selectable step-up/step-down mode
9) Supports inverting circuit for negative output voltage
10) Support a constant-current LED drive for backlight applications
11) Includes multiple synchronous rectification channels
● Applications
Digital still cameras, portable DVD players, and digital video cameras.
● Product lineup
No.10036EAT07
Parameter
Input voltage
Reference voltage precision
Operating frequency range
Step-up
Step-down
Step-up/step-down switch regulator
Inverting
Built-in FET
Synchronous rectification
Load switching
Operating temperature range
Package
BD9739KN
1.5 V to 10 V
1 V ± 1%
100 k to 1.2 MHz
3CH
2CH
1CH
1CH
3CH
3CH
3CH
-20 ℃ to +85 ℃
UQFN64
BD9740KN
1.5 V to 10 V
1 V ± 1%
100 k to 1.2 MHz
2CH
1CH
3CH
1CH
1CH
2CH
—
-20 ℃ to +85 ℃
UQFN48
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
1/14
2010.09 - Rev.A
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