参数资料
| 型号： | BH31FB1WHFV-TR |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.1V .15A 5HVS0F |
| 特色产品： | CMOS LDO Regulators |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.1V |
| 输入电压： | 最高 5.5V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小值） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-665 |
| 供应商设备封装： | 5-HVSOF |
| 包装： | 标准包装 |
| 其它名称： | BH31FB1WHFV-DKR BH31FB1WHFV-DKR-ND BH31FB1WHFVDKR |
BHxxMA3 series
Datasheet
● Operational Notes
1) Absolute maximum ratings
This product is produced with strict quality control, however it may be destroyed if operated beyond its absolute
maximum ratings. In addition, it is impossible to predict all destructive situations such as short-circuit modes, open
circuit modes, etc. T h e r e f o r e , i t i s i m p o r t a n t t o c o n s i d e r c i r c u i t p r o t e c t i o n m e a s u r e s , l i k e a d d i n g a
fuse, in case the IC is operated in a special mode exceeding the absolute maximum ratings.
2) GND Potential
GND potential must be the lowest potential of all pins of the IC at all operating conditions. Ensure that no pins are at a
voltage below the ground pin at any time, even during transient condition.
3) Setting of Heat
Carry out the heat design that have adequate margin considering Pd of actual working states.
4) Pin Short and Mistake Fitting
When mounting the IC on the PCB, pay attention to the orientation of the IC. If there is mistake in the placement, the IC
may be burned up.
5) Actions in Strong Magnetic Field
Using the IC within a strong magnetic field may cause the IC to malfunction.
6) Mutual impedance
Use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as
possible. Use a capacitor to keep ripple to a minimum.
7) STBY Pin Voltage
For standby mode, set STBY voltage below 0.3V. For normal operation, set the pin voltage beyond 1.5V. It is not
recommended to set STBY voltage between 0.3V and 1.5V, as it may cause malfunctions.
8) Over Current Protection Circuit
Over current and short circuit protection is built-in at the output, and IC destruction is prevented at the time of load
short circuit. These protection circuits are effective in the destructive prevention by the sudden accident. Please
avoid applications where the over current protection circuit operates continuously.
9) Thermal shutdown
This IC also features a thermal shutdown circuit that is designed to turn off the output when the junction temperature of
the IC exceeds about 170 ℃ . This feature is intended to protect the IC only in the event of thermal overload and is not
designed to guarantee operation or act as an active security device for applications. Therefore, it is not recommended
that you design application where TSD will work in normal condition.
TSD ON TEMPURATURE( ℃ ) (typ.)
HYSTERESIS TEMPURATURE( ℃ ) (typ. ）
BHxxMA3 series
170
15
10) Noise Pin
NOISE pin can drive small current, since it is directly connected to reference voltage circuit. The output voltage may
drop when the load of NOISE pin is more than 100nA. If the pin is connected to a capacitor, please use ceramic
capacitor for small leak current. Please take note that the output noise is smaller as NOISE pin capacitor is larger,
but startup time is longer.
11)Output capacitor
To prevent oscillation at output, it is recommended that the IC be operated at the stable region shown in Figure 12.
It operates at the capacitance value of more than 1.0 μ F. As capacitance is larger, stability becomes more stable and
characteristic of output load fluctuation is also improved.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
8/10
TSZ02201-0RBR0A300170-1-2
25.Sep.2013 Rev.001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BH31LB1WG | 制造商:ROHM 制造商全称:Rohm 功能描述:Standard CMOS LDO Regulators |
| BH31LB1WHFV | 制造商:ROHM 制造商全称:Rohm 功能描述:Standard CMOS LDO Regulators |
| BH31M0AWHFV-TR | 制造商:ROHM 制造商全称:Rohm 功能描述:1ch 300mA CMOS LDO Regulators |
| BH31MA3WHFV | 制造商:ROHM 制造商全称:Rohm 功能描述:CMOS Type series regulator |
| BH31MA3WHFV-TR | 功能描述:低压差稳压器 - LDO 300MA 3.1V CMOS LDO Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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