LT1054-Switched-Capacitor Volt
lt1054描述
the lt®1054 is a monolithic, bipolar, switched-capacitor voltage converter and regulator. the lt1054 provides higher output current than previously available converters with significantly lower voltage losses. an adaptive switch driver scheme optimizes efficiency over a wide range of output currents. total voltage loss at 100ma output current is typically 1.1v. this holds true over the full supply voltage range of 3.5v to 15v. quiescent current is typically 2.5ma.
the lt1054 also provides regulation, a feature not previously available in switched-capacitor voltage converters. by adding an external resistive divider a regulated output can be obtained. this output will be regulated against changes in both input voltage and output current. the lt1054 can also be shut down by grounding the feedback pin. supply current in shutdown is less than 100µa.
the internal oscillator of the lt1054 runs at a nominal frequency of 25khz. the oscillator pin can be used to adjust the switching frequency or to externally synchronize the lt1054.
the lt1054 is pin compatible with previous converters such the ltc1044/ltc7660.
lt1054特点
available in space saving so-8 package
output current: 100ma (lt1054)
125ma (lt1054l)
reference and error amplifier for regulation
low loss: 1.1v at 100ma
operating range:3.5v to 15v (lt1054)
3.5v to 7v (lt1054l)
external shutdown
external oscillator synchronization
can be paralleled
pin compatible with the ltc®1044/ltc7660
typical application
lt1054封装
n-8,so-8
lt1054应用
voltage inverter
voltage regulator
negative voltage doubler
positive voltage doubler
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the lt®1054 is a monolithic, bipolar, switched-capacitor voltage converter and regulator. the lt1054 provides higher output current than previously available converters with significantly lower voltage losses. an adaptive switch driver scheme optimizes efficiency over a wide range of output currents. total voltage loss at 100ma output current is typically 1.1v. this holds true over the full supply voltage range of 3.5v to 15v. quiescent current is typically 2.5ma.
the lt1054 also provides regulation, a feature not previously available in switched-capacitor voltage converters. by adding an external resistive divider a regulated output can be obtained. this output will be regulated against changes in both input voltage and output current. the lt1054 can also be shut down by grounding the feedback pin. supply current in shutdown is less than 100µa.
the internal oscillator of the lt1054 runs at a nominal frequency of 25khz. the oscillator pin can be used to adjust the switching frequency or to externally synchronize the lt1054.
the lt1054 is pin compatible with previous converters such the ltc1044/ltc7660.
lt1054特点
available in space saving so-8 package
output current: 100ma (lt1054)
125ma (lt1054l)
reference and error amplifier for regulation
low loss: 1.1v at 100ma
operating range:3.5v to 15v (lt1054)
3.5v to 7v (lt1054l)
external shutdown
external oscillator synchronization
can be paralleled
pin compatible with the ltc®1044/ltc7660
typical application
lt1054封装
n-8,so-8
lt1054应用
voltage inverter
voltage regulator
negative voltage doubler
positive voltage doubler
SII推出最低功耗S-5844系列温度开关IC
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