LT1301CS8#PBF

LT1301 is a micropower step-up DC/DC converter that utilizes Burst Mode™ operation. This device can deliver 5V or 12V from a two-cell battery input. The on-chip power switch has a low 170mV saturation voltage at a switch current of 1A, a four-fold reduction over prior designs. A 155KHz internal oscillator allows the use of extremely small surface mount inductors and capacitors. Operation is guaranteed at 1.8V input. This allows more energy to be extracted from the battery, increasing operating life. The ILIM pin can be used for soft start or to program peak switch current with a single resistor allowing the use of even smaller inductors in lighter load applications. It is used in application such as flash memory VPP generator, palmtop computers, portable instruments, bar-code scanners, personal digital assistants, PCMCIA cards etc.

• Better high current efficiency than CMOS
• Upto 89% efficiency
• Quiescent current is 120µA typical at (VSHDN = 0.5V, VSEL = 5V, VSENSE = 5.5V)
• Programmable 5V or 12V output
• Low VCESAT switch is 170mV typical at 1A
• ILIM pin programs peak switch current
• Uses inexpensive surface mount inductors
• Oscillator frequency is 155KHz typical
• Operating junction temperature is 0°C to 70°C
• Package style is 8-lead plastic SOIC

Hinweise

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