LTC3026-1 Series

1.5A Low Input Voltage VLDO Linear Regulator

Catalog

1.5A Low Input Voltage VLDO Linear Regulator

Part	Current - Output	Control Features	Output Type	Voltage - Input (Max) [custom]	Operating Temperature [Min]	Operating Temperature [Max]	Number of Regulators	Voltage - Output (Max) [Max]	Output Configuration	Voltage - Output (Min/Fixed)	Package / Case	Package / Case	Supplier Device Package	Protection Features	Mounting Type	Voltage Dropout (Max) [Max]	Voltage - Input (Max) [Max]
Analog Devices LTC3026EMSE	1.5 A	Enable Power Good	Adjustable	3.5 V 5.5 V	-40 °C	125 ¯C	1	2.6 V	Positive	0.4 V	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	10-MSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V
Analog Devices LTC3026IDD#TRPBF	1.5 A	Enable Power Good	Adjustable	3.5 V 5.5 V	-40 °C	125 °C	1	2.6 V	Positive	0.4 V		10-WFDFN Exposed Pad	10-DFN (3x3)	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V
Analog Devices LTC3026IMSE#TRPBF	1.5 A	Enable Power Good	Adjustable	3.5 V 5.5 V	-40 °C	125 °C	1	2.6 V	Positive	0.4 V	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	10-MSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V
Analog Devices LTC3026EMSE-1#PBF	1.5 A	Enable Power Good	Adjustable		-40 °C	125 °C	1	2.6 V	Positive	0.4 V	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	10-MSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V	5.5 V
Analog Devices LTC3026IDD#TR	1.5 A	Enable Power Good	Adjustable	3.5 V 5.5 V	-40 °C	125 °C	1	2.6 V	Positive	0.4 V		10-WFDFN Exposed Pad	10-DFN (3x3)	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V
Analog Devices LTC3026EDD#PBF	1.5 A	Enable Power Good	Adjustable	3.5 V 5.5 V	-40 °C	125 °C	1	2.6 V	Positive	0.4 V		10-WFDFN Exposed Pad	10-DFN (3x3)	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V
Analog Devices LTC3026EDD-1#TRPBF	1.5 A	Enable Power Good	Adjustable		-40 °C	125 °C	1	2.6 V	Positive	0.4 V		10-WFDFN Exposed Pad	10-DFN (3x3)	Over Current Over Temperature Reverse Polarity Short Circuit	Surface Mount	0.25 V	5.5 V

Catalog

1.5A Low Input Voltage VLDO Linear Regulator

Key Features

• Input Voltage Range: 1.14V to 5.5V

• Low Dropout Voltage: 100mV at IOUT= 1.5A

• Adjustable Output Range: 0.4V to 2.6V

• Output Current: Up to 1.5A

• Excellent Supply Rejection Even Near Dropout

• Shutdown Disconnects Load from VINand VBST

• Low Operating Current:IIN= 95μA at VIN= 1.5VIBIAS= 175μA at VBIAS= 5V

• IIN= 95μA at VIN= 1.5V

• IBIAS= 175μA at VBIAS= 5V

• Low Shutdown Current:IIN< 1μA (Typ), IBST= 0.1μA (Typ)

• IIN< 1μA (Typ), IBST= 0.1μA (Typ)

• Stable with 10μF or Greater Ceramic Capacitors

• Short-Circuit, Reverse Current Protected

• Overtemperature Protected

• Available in 10-Lead MSOP and 10-Lead (3mm × 3mm) DFN Packages

Description

The LTC3026 is a very low dropout (VLDO™) linear regulator that can operate at input voltages down to 1.14V. The 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.The LTC3026 regulator is stable with 10μF or greater ceramic output capacitors. The device has a low 0.4V reference voltage which is used to program the output voltage via two external resistors. The device also has internal current limit, overtemperature shutdown, and reverse output current protection. The LTC3026 is available in a small 10-lead MSOP or low profile (0.75mm) 10-lead 3mm × 3mm DFN package.FeaturesLTC3026Integrated boost converterLTC3026-1Boost converter internally disabled and required an external 5V supply to operateApplicationsHigh Efficiency Linear RegulatorPost Regulator for Switching SuppliesMicroprocessor Supply