产品概述
描述
The STBLW35 is an ultra-low power and high-efficiency buck-boost DC-DC converter which can work as boost or buck-boost according to the selected hardware configuration. When in buck-boost the DC-DC can seamlessly switch between the two working modes depending on operating conditions.
The IC shows very low power losses either in active or disable mode and provides an average output current between 33 mA to 70 mA, suitable to guarantee load minimum current constraints or to faster charge a battery. The device also allows the charge of any battery by tightly monitoring the end-of-charge and the minimum battery voltage in order to avoid overdischarge and to preserve battery life.
The power manager covers the input voltage range from 150 mV up to 18 V and guarantees high efficiency in both buck-boost and boost configuration.
Furthermore, the STBLW35 device shows very high flexibility thanks also to the trimming capability of the overvoltage and the undervoltage protection voltages.
In order to optimize the power consumption during system operation, the device can be driven in standby mode thanks to the high impedance Enable pin.
An unregulated voltage output is available (to supply a transceiver for instance), while two fully independent LDOs are embedded for powering sensors and other companion chips. Both LDOs (1.8 V and 3.3 V) can be independently enabled through dedicated pins.
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所有功能
- Seamless transition from Buck-Boost to Boost and vice versa working mode
- Up to 70 mA output current
- Four fully integrated MOSFETs
- Enable pin
- 2.6 V to 5.3 V trimmable overvoltage level (± 1% accuracy)
- 2.2 V to 3.6 V trimmable undervoltage level (± 1% accuracy)
- Two fully independent LDOs (1.8 V and 3.3 V output)
- Enable/disable LDO control pins
- Load disconnect function at first switch-on
- Embedded pass transistor status and DC-DC status open drain indication pins
EDA符号、封装和3D模型
STMicroelectronics - STBLW35
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符号
封装
3D模型
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** |
|---|---|---|---|---|---|
| STBLW35TTR | 批量生产 | VFQFPN 20 3x3 | 工业 | Ecopack2 | |
STBLW35TTR
Package:
VFQFPN 20 3x3Material 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 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（ºC） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| STBLW35TTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | VFQFPN 20 3x3 | Tape and Reel | PHILIPPINES | EAR99 | NEC | - | - | - | |||
STBLW35TTR 批量生产