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The KF series are very low drop regulators available in SO-8 and DPAK packages and in a wide range of output voltages.
The very low dropout voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and especially in battery powered systems.
A shutdown logic control function is available (pin 5, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 μF capacitor for stability allowing space and cost saving.主要特性
- Very low dropout voltage (0.4 V)
- Very low quiescent current (typ. 50 μA in OFF mode, 500 μA in ON mode)
- Output current up to 500 mA
- Logic-controlled electronic shutdown
- Output voltages of 2.5; 3.3; 5; 8 V
- Internal current and thermal limit
- Only 2.2 μF for stability
- Available in ± 2 % accuracy at 25 °C
- Supply voltage rejection: 70 db (typ.)
- Temperature range: - 40 to 125 °C
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质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| KF25BD-TR |
批量生产
|
SO-8 | 工业 | Ecopack2 | |
| KF25BDT-TR |
批量生产
|
DPAK | 工业 | Ecopack2 | |
| KF33BD-TR |
批量生产
|
SO-8 | 工业 | Ecopack2 | |
| KF33BDT-TR |
批量生产
|
DPAK | 工业 | Ecopack2 | |
| KF50BD-TR |
批量生产
|
SO-8 | 工业 | Ecopack2 | |
| KF50BDT-TR |
批量生产
|
DPAK | 工业 | Ecopack2 | |
| KF80BDT-TR |
批量生产
|
DPAK | 工业 | Ecopack2 |
|
KF80BDT-TR
Package:
DPAKMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | 更多信息 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||||
| KF33BD-TR | 10 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-8 | -40 | 125 | 3.3 | 2 | 0.5 | CHINA | 0.32 / 1k | ||
| KF80BDT-TR | 4 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | DPAK | -40 | 125 | 8 | 2 | 0.5 | CHINA | 0.343 / 1k | ||
| KF50BDT-TR | 8 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | DPAK | -40 | 125 | 5 | 2 | 0.5 | CHINA | 0.343 / 1k | ||
| KF50BD-TR | 8 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-8 | -40 | 125 | 5 | 2 | 0.5 | CHINA | 0.32 / 1k | ||
| KF25BD-TR | 6 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-8 | -40 | 125 | 2.5 | 2 | 0.5 | CHINA | 0.32 / 1k | ||
| KF25BDT-TR | 4 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | DPAK | -40 | 125 | 2.5 | 2 | 0.5 | CHINA | 0.368 / 1k | ||
| KF33BDT-TR | 9 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | DPAK | -40 | 125 | 3.3 | 2 | 0.5 | CHINA | 0.368 / 1k | ||