LTC3026IMSE#PBF

LTC3026IMSE#PBF is a very low dropout (VLDO™) linear regulator that can operate at input voltages down to 1.14V. This device is capable of supplying 1.5A of output current with a typical dropout voltage of only 100mV. To allow operation at low input voltages the LTC3026 includes a boost converter that provides the necessary headroom for the internal LDO circuitry. Output current comes directly from the input supply to maximize efficiency. The boost converter requires only a small chip inductor and ceramic capacitor for operation. Additionally, the boosted output voltage of one LTC3026 can supply the boost voltage for other LTC3026s, thus requiring a single inductor for multiple LDOs. A user-supplied boost voltage can be used eliminating the need for an inductor altogether. Applications include high efficiency linear regulator, post regulator for switching supplies, microprocessor supply.

• Excellent supply rejection even near dropout, stable with 10µF or greater ceramic capacitors
• Shutdown disconnects load from VIN and VBST, short-circuit, reverse current protected
• Overtemperature protected, operating voltage range from 1.14V to 3.5V
• Operating current is 1160µA typical at (IOUT = 0mA, VOUT = 0.8V, VSHDN = VIN, VIN = 1.2V)
• Shutdown current is 0.6µA typical at (VSHDN = 0V, VIN = 3.5V)
• Boost undervoltage lockout is 4.2V typical
• Boost output drive is 7mA typical at (VIN < 1.4V, TJ = 25°C)
• Output voltage noise is 110µVRMS typical at (f = 10Hz to 100KHz, IL = 800mA, boost disabled)
• Operating temperature range from -40°C to 125°C
• 10-lead plastic MSOP package

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party