- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 升压稳压器
- 功能描述:具有 150mA 峰值电流限制的微功耗升压直流/直流转换器
- 点击这里打开及下载LM2705的技术文档资料
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The LM2705 is a micropower step-up DC-DC converter in a small 5-pin SOT-23 package. A current-limited, fixed-off-time control scheme conserves operating current, which results in high efficiency over a wide range of load conditions. The 21-V switch allows for output voltages as high as 20 V. The low 400-ns off-time permits the use of tiny, low-profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2705 is ideal for LCD panels requiring low current and high efficiency as well as white-LED applications for cellular phone back-lighting. The LM2705 device can drive up to 3 white LEDs from a single Li-Ion battery. The low peak-inductor current of the LM2705 makes it ideal for USB applications.
For all available packages, see the orderable addendum at the end of the data sheet.- 2.2-V to 7-V Input Range
- 150-mA, 0.7-? Internal Switch
- Adjustable Output Voltage up to 20 V
- Input Undervoltage Lockout
- 0.01-μA Shutdown Current
- Uses Small Surface-Mount Components
- Small 5-Pin SOT-23 Package
- Vin (Min) (V)
- 2.2
- Vin (Max) (V)
- 7
- Vout (Min) (V)
- 1.24
- Vout (Max) (V)
- 20
- Switch current limit (Typ) (A)
- 0.15
- Regulated outputs (#)
- 1
- Switching frequency (Min) (kHz)
- 600
- Switching frequency (Max) (kHz)
- 2500
- Iq (Typ) (mA)
- 0.235
- Features
- Enable
- Duty cycle (Max) (%)
- 76
- Rating
- Catalog
LM2705的完整型号有:LM2705MF-ADJ/NOPB、LM2705MFX-ADJ/NOPB,以下是这些产品的关键参数及官网采购报价:
LM2705MF-ADJ/NOPB,工作温度:-40 to 85,封装:SOT-23 (DBV)-5,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2705MF-ADJ/NOPB的批量USD价格:.895(1000+)
LM2705MFX-ADJ/NOPB,工作温度:-40 to 85,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2705MFX-ADJ/NOPB的批量USD价格:.746(1000+)
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