LM26003 Series

3A Switching Regulator with High Efficiency Sleep Mode

Catalog

3A Switching Regulator with High Efficiency Sleep Mode

Part	Voltage - Output (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Configuration	Output Type	Mounting Type	Topology	Number of Outputs	Function	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed) [Min]	Package / Case	Package / Case [custom]	Package / Case	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Supplied Contents	Frequency - Switching	Outputs and Type	Outputs and Type	Regulator Topology	Voltage - Output	Voltage - Input [Min]	Voltage - Input [Max]	Board Type	Main Purpose	Utilized IC / Part
Texas Instruments LM26003MHX/NOPB	35 V	500 kHz	150 kHz	Positive	Adjustable	Surface Mount	Buck	1	Step-Down	3 V	38 V	1.236 V	20-PowerTSSOP	4.4 mm	0.173 in	3 A	-40 °C	125 ¯C	20-HTSSOP
Texas Instruments LM26003EVAL																3 A				Board(s)	300 kHz	Non-Isolated	1	Buck	3.3 V	4 V	38 V	Fully Populated	DC/DC Step Down	LM26003
Texas Instruments LM26003MH/NOPB	35 V	500 kHz	150 kHz	Positive	Adjustable	Surface Mount	Buck	1	Step-Down	3 V	38 V	1.236 V	20-PowerTSSOP	4.4 mm	0.173 in	3 A	-40 °C	125 ¯C	20-HTSSOP

Catalog

3A Switching Regulator with High Efficiency Sleep Mode

Key Features

• LM26003-Q1 is an Automotive-Grade ProductThat is AEC-Q100 Grade 1 Qualified (–40°C to+125°C Operating Junction Temperature)High-Efficiency Sleep Mode40-µA Typical Iq in Sleep Mode10.8-µA Typical Iq in Shutdown Mode3.0-V Minimum Input Voltage4.0-V to 38-V Continuous Input Range1.5% Reference AccuracyCycle-by-Cycle Current LimitAdjustable Frequency (150 kHz to 500 kHz)Synchronizable to an External ClockPower Good FlagForced PWM FunctionAdjustable Soft-Start20-Pin HTSSOP PackageThermal Shut DownLM26003-Q1 is an Automotive-Grade ProductThat is AEC-Q100 Grade 1 Qualified (–40°C to+125°C Operating Junction Temperature)High-Efficiency Sleep Mode40-µA Typical Iq in Sleep Mode10.8-µA Typical Iq in Shutdown Mode3.0-V Minimum Input Voltage4.0-V to 38-V Continuous Input Range1.5% Reference AccuracyCycle-by-Cycle Current LimitAdjustable Frequency (150 kHz to 500 kHz)Synchronizable to an External ClockPower Good FlagForced PWM FunctionAdjustable Soft-Start20-Pin HTSSOP PackageThermal Shut Down

Description

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode. The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients. Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock. Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count. The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode. The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients. Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock. Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.