Datasheet Analog Devices LTC1980 — 数据表

LTC1980
Combination Battery
Charger and DC/DC Converter U FEATURES DESCRIPTIO ■ The LTC®1980 integrates PWM power control for charging a battery and converting the battery voltage to a
regulated output or simultaneously charging the battery
while powering a system load from an unregulated AC wall
adapter. Combining these features into a single IC produces a smaller area and lower cost solution compared to
presently available multi-IC solutions. The LTC1980 shares
the discrete components for both the battery charger and
the DC/DC converter thus minimizing size and cost relative
to dual controller solutions. Both the battery charger and
DC/DC converter use a current mode flyback topology for
high efficiency and excellent transient response. Optional
Burst Mode operation and power-down mode allow power
density, efficiency and output ripple to be tailored to the
application. ■
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■ Single Controller IC Includes Battery Charger …