LM26420 Series

Dual 2 A, automotive-qualified, high-efficiency synchronous DC/DC converter

Link to Manufacturer Page: https://www.ti.com/

Catalog

Dual 2 A, automotive-qualified, high-efficiency synchronous DC/DC converter

Part	Mounting Type	Current - Output	Frequency - Switching	Output Configuration	Function	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs [custom]	Voltage - Input (Min) [Min]	Output Type	Supplier Device Package	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Package / Case [custom]	Package / Case	Package / Case [custom]	Voltage - Input (Max) [Max]	Topology	Qualification	Grade	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Main Purpose	Supplied Contents	Utilized IC / Part	Outputs and Type	Outputs and Type
Texas Instruments LM26420YMHX/NOPB	Surface Mount	2 A	550 kHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck
Texas Instruments LM26420Q1XMHX/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420YMH/NOPB	Surface Mount	2 A	550 kHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck
Texas Instruments LM26420XSQ/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck
Texas Instruments LM26420Q1XSQ/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420XMHX/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck
Texas Instruments LM26420XMHEVAL/NOPB		2 A	2.2 MHz																		Fully Populated	3 V	5.5 V	DC/DC, Step Down	Board(s)	LM26420	2	Non-Isolated
Texas Instruments LM26420YSQX/NOPB	Surface Mount	2 A	550 kHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck
Texas Instruments LM26420YSQEVAL/NOPB		2 A	550 kHz																		Fully Populated	3 V	5.5 V	DC/DC, Step Down	Board(s)	LM26420	2	Non-Isolated
Texas Instruments LM26420YSQ/NOPB	Surface Mount	2 A	550 kHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck
Texas Instruments LM26420XMH/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck
Texas Instruments LM26420Q1XSQX/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420Q0XMH/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	150 C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420XSQEVAL/NOPB		2 A	2.2 MHz																		Fully Populated	3 V	5.5 V	DC/DC, Step Down	Board(s)	LM26420	2	Non-Isolated
Texas Instruments LM26420Q1XMH/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420Q0XMHX/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	150 C	-40 °C	2	3 V	Adjustable	20-HTSSOP	0.8 V	4.5 V	0.173 in	20-PowerTSSOP	4.4 mm	5.5 V	Buck	AEC-Q100	Automotive
Texas Instruments LM26420XSQX/NOPB	Surface Mount	2 A	2.2 MHz	Positive	Step-Down	125 ¯C	-40 °C	2	3 V	Adjustable	16-WQFN (4x4)	0.8 V	4.5 V		16-WQFN Exposed Pad		5.5 V	Buck

Key Features

• Qualified for automotive applicationsAEC Q100-qualified with the following results:Device temperature grade 0 (Q0): –40°C to +150°C ambient operating temperatureDevice temperature grade 1 (Q1): –40°C to +125°C ambient operating temperatureFunctional Safety-CapableDocumentation available to aid functional safety system designCompliant with CISPR25 class 5 conducted emissionsInput voltage range of 3V to 5.5VOutput voltage range of 0.8V to 4.5V2A output current per regulatorFixed 2.2MHz switching frequency0.8V, 1.5% Internal voltage referenceInternal soft startIndependent power good and precision enable for each outputCurrent mode, PWM operationThermal shutdownOvervoltage protectionStart-up into prebiased output loadsRegulators are 180° out of phaseCreate a custom design using the LM26420-Q1 with theWEBENCH Power DesignerQualified for automotive applicationsAEC Q100-qualified with the following results:Device temperature grade 0 (Q0): –40°C to +150°C ambient operating temperatureDevice temperature grade 1 (Q1): –40°C to +125°C ambient operating temperatureFunctional Safety-CapableDocumentation available to aid functional safety system designCompliant with CISPR25 class 5 conducted emissionsInput voltage range of 3V to 5.5VOutput voltage range of 0.8V to 4.5V2A output current per regulatorFixed 2.2MHz switching frequency0.8V, 1.5% Internal voltage referenceInternal soft startIndependent power good and precision enable for each outputCurrent mode, PWM operationThermal shutdownOvervoltage protectionStart-up into prebiased output loadsRegulators are 180° out of phaseCreate a custom design using the LM26420-Q1 with theWEBENCH Power Designer

Description

The LM26420-Q1 regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has the ability to drive two 2A loads with an internal 75mΩ MOS top switch and an internal 50mΩ MOS bottom switch using state-of-the-art BICMOS technology results in the best power density available. The world-class control circuitry allow on times as low as 30ns, thus supporting exceptionally high-frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.8V. Although the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 uses current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions. Because the switching frequency is made sure to be greater than 2MHz, the LM26420-Q1 can be used in automotive applications without causing interference in the AM frequency band. The LM26420-Q1 regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has the ability to drive two 2A loads with an internal 75mΩ MOS top switch and an internal 50mΩ MOS bottom switch using state-of-the-art BICMOS technology results in the best power density available. The world-class control circuitry allow on times as low as 30ns, thus supporting exceptionally high-frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.8V. Although the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 uses current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions. Because the switching frequency is made sure to be greater than 2MHz, the LM26420-Q1 can be used in automotive applications without causing interference in the AM frequency band.