Datasheet Texas Instruments LM3670MF-1.875/NOPB — 数据表

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SNVS250F – NOVEMBER 2004 – REVISED FEBRUARY 2016 LM3670 Miniature Step-Down DC-DC Converter for Ultralow Voltage Circuits
1 Features 3 Description The LM3670 step-down DC-DC converter is
optimized for powering ultralow voltage circuits from a
single Li-Ion cell or three-cell NiMH/NiCd batteries. It
provides up to 350-mA load current, over an input
voltage range from 2.5 V to 5.5 V. There are several
different fixed voltage output options available as well
as an adjustable output voltage version. 1 Input Voltage Range: 2.5 V to 5.5 V
Adjustable Output Voltages (VOUT): 0.7 V to 2.5 V
Fixed Output Voltages: 1.2 V, 1.5 V, 1.6 V, 1.8 V,
1.875 V, 3.3V
15-ВµA Typical Quiescent Current
350-mA Maximum Load Capability
1-MHz PWM Fixed Switching Frequency (Typical)
Automatic PFM and PWM Mode Switching
Low Dropout Operation – 100% Duty Cycle Mode
Internal Synchronous Rectification for High …