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ISL97519/ISL97519A pdf datashe
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大小:444 |
2009-01-19
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600kHz/1.2MHz PWM Step-Up Regulator
The ISL97519A is a high frequency, high efficiency step-up
voltage regulator operated at constant frequency PWM
mode. With an internal 2.0A, 200mΩ MOSFET, it can deliver
up to 1A output current at over 90% efficiency. Two
selectable frequencies, 600kHz and 1.2MHz, allow trade offs
between smaller components and faster transient response.
An external compensation pin gives the user greater
flexibility in setting frequency compensation allowing the use
of low ESR Ceramic output capacitors.
When shut down, it draws <1μA of current and can operate
down to 2.3V input supply. These features along with
1.2MHz switching frequency makes it an ideal device for
portable equipment and TFT-LCD displays.
The ISL97519A is available in an 8 Ld MSOP package with a
maximum height of 1.1mm. The device is specified for
operation over the full -40°C to +85°C temperature range.
The ISL97519A is a high frequency, high efficiency step-up
voltage regulator operated at constant frequency PWM
mode. With an internal 2.0A, 200mΩ MOSFET, it can deliver
up to 1A output current at over 90% efficiency. Two
selectable frequencies, 600kHz and 1.2MHz, allow trade offs
between smaller components and faster transient response.
An external compensation pin gives the user greater
flexibility in setting frequency compensation allowing the use
of low ESR Ceramic output capacitors.
When shut down, it draws <1μA of current and can operate
down to 2.3V input supply. These features along with
1.2MHz switching frequency makes it an ideal device for
portable equipment and TFT-LCD displays.
The ISL97519A is available in an 8 Ld MSOP package with a
maximum height of 1.1mm. The device is specified for
operation over the full -40°C to +85°C temperature range.
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