参数资料
| 型号： | BD9302FP-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 2A DL HSOP25 |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 14.4 V |
| 输入电压： | 6 V ~ 18 V |
| 频率 - 开关： | 200kHz ~ 2.5MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 25-SOP（0.213"，5.40mm）+ 2 翼片 |
| 包装： | 标准包装 |
| 供应商设备封装： | 25-HSOP |
| 产品目录页面： | 1373 (CN2011-ZH PDF) |
| 其它名称： | BD9302FP-E2DKR |
8)
Ground wiring pattern
If small-signal GND and large-current GND are provided, It will be
recommended to separate the large-current GND pattern from the
small-signal GND pattern and establish a single ground at the reference
point of the set PCB so that resistance to the wiring pattern and voltage
fluctuations due to a large current will cause no fluctuations in voltages of
the small-signal GND. Pay attention not to cause fluctuations in the GND
wiring pattern of external parts as well.
Bypass diode
Backflow prevention diode
VCC
Output pin
9)
On the application shown on the right, if the VCC and each output voltage
are inverted, for example, if the VCC is short-circuited to the Ground with
external diode charged, internal circuits or elements may be damaged. To
avoid that, use the output pin capacitor in the range of 10 to 100 μ F.
Fig.36 Typical bypass diode application
Furthermore, in order to use a capacitor of 100 μ F or more, it is
recommended to insert a backflow prevention diode or a bypass diode
between the output and VCC.
10) Overcurrent protection circuit
Output has a built-in overcurrent protection circuit according to the current capability, which prevents the destruction of
the IC at short-circuiting of load. However, this protection circuit is only effective to prevent destruction due to a sudden
accident but does not support for the continuous operation of the protection circuit or use in transition. Furthermore,
since the current capability has characteristic negative to temperature, give consideration to the thermal design.
11) Temperature protection circuit
This IC has a built-in temperature protection circuit to prevent the thermal destruction of the IC. As described above, be
sure to use this IC within the power dissipation range. Should a condition exceeding the power dissipation range
continues, the chip temperature Tj will rise to activate the temperature protection circuit, thus turning OFF the output
power element. Then, when the tip temperature Tj falls, the circuit will be automatically reset.
Furthermore, since the temperature protection circuit is activated under the condition exceeding the absolute maximum
ratings, NEVER attempt to use the temperature protection circuit for set design or else.
12) Input capacitor
In order to derate a peak noise, which occurs while in switching operation, be sure to insert a capacitor (ceramic
capacitor) having a low ESR of 10 to 100 μ F as close to the pin as possible between the VCC and Ground.
Power dissipation
1500
1250
1000
750
500
250
0
0
25
50
75
100
125
150
Ambient temperature : Ta [ ? C]
Fig.37 Thermal derating characteristics
15/16
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相关代理商/技术参数 |
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| BD9303FP-E2 | 制造商:ROHM Semiconductor 功能描述:1MHZ 2A POWER SWITCH REG. - Tape and Reel 制造商:ROHM Semiconductor 功能描述:POWER SWITCH REG. 1MHZ 2A |
| BD9305AFVM | 制造商:ROHM 制造商全称:Rohm 功能描述:Single-output Step-up,High-efficiency Switching Regulator(Controller Type) |
| BD9305AFVM-TR | 功能描述:直流/直流开关调节器 4.2-18V 100-800kHz 1 Chan Step-Down RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| BD9306AFVM | 制造商:ROHM 制造商全称:Rohm 功能描述:Single-output Step-up,High-efficiency Switching Regulator(Controller Type) |
| BD9306AFVM-TR | 功能描述:直流/直流开关调节器 4.2-18V 100-800kHz 1 Chan Step-Up RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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