LTC3026EMSE#PBF

LTC3026 is a very low dropout (VLDO™) linear regulator. To allow operation at low input voltages this device 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 device can supply the boost voltage for other devices, thus requiring a single inductor for multiple LDOs. A user supplied boost voltage can be used eliminating the need for an inductor altogether. The device has a low 0.4V reference voltage which is used to program the output voltage via two external resistors. It also has internal current limit, overtemperature shutdown, and reverse output current protection. It is used in application such as high efficiency linear regulator, post regulator for switching supplies, microprocessor supply etc.

• Operating voltage range is 1.14V to 3.5V
• Output current upto 1.5A
• Excellent supply rejection even near dropout
• Shutdown disconnects load from VIN and VBST
• Operating current is 950µA typical at (IOUT = 0mA, VOUT = 1.2V, VSHDN = VIN, VIN = 1.5V)
• Stable with 10µF or greater ceramic capacitors
• Shutdown current is 0.6µA typical at (VSHDN = 0V, VIN = 3.5V)
• Output voltage noise is 110µVRMS typical
• Operating junction temperature is –40°C to 125°C
• Package style is 10-lead plastic MSOP

Notes

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