Specification	LMR12010YMKE/NOPB

Current - Output	1 A
Frequency - Switching	3 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	TSOT-23-6, SOT-23-6 Thin
Supplier Device Package	SOT-23-THIN
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	20 V
Voltage - Input (Min) [Min]	3 V
Voltage - Output (Max) [Max]	17 V
Voltage - Output (Min/Fixed)	0.8 V

LMR12010 Series

3V to 20V, 1A Step-Down DC/DC Switching Regulator in SOT-23

Part	Function	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Package / Case	Current - Output	Voltage - Input (Min) [Min]	Output Type	Frequency - Switching	Output Configuration	Number of Outputs	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Mounting Type	Voltage - Output (Max) [Max]	Supplier Device Package
Texas Instruments LMR12010XMKX/NOPB	Step-Down	-40 °C	125 ¯C	Buck	SOT-23-6 Thin TSOT-23-6	1 A	3 V	Adjustable	1.6 MHz	Positive	1	20 V	0.8 V	Surface Mount	17 V	SOT-23-THIN
Texas Instruments LMR12010YMKE/NOPB	Step-Down	-40 °C	125 ¯C	Buck	SOT-23-6 Thin TSOT-23-6	1 A	3 V	Adjustable	3 MHz	Positive	1	20 V	0.8 V	Surface Mount	17 V	SOT-23-THIN
Texas Instruments LMR12010YMK/NOPB	Step-Down	-40 °C	125 ¯C	Buck	SOT-23-6 Thin TSOT-23-6	1 A	3 V	Adjustable	3 MHz	Positive	1	20 V	0.8 V	Surface Mount	17 V	SOT-23-THIN
Texas Instruments LMR12010XMKE/NOPB	Step-Down	-40 °C	125 ¯C	Buck	SOT-23-6 Thin TSOT-23-6	1 A	3 V	Adjustable	1.6 MHz	Positive	1	20 V	0.8 V	Surface Mount	17 V	SOT-23-THIN

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.28
		10	$ 2.94
		25	$ 2.78
		100	$ 2.41
	Digi-Reel®	1	$ 3.28
		10	$ 2.94
		25	$ 2.78
		100	$ 2.41
	Tape & Reel (TR)	250	$ 2.29
		500	$ 2.05
		1250	$ 1.73
		2500	$ 1.65
		6250	$ 1.58
Texas Instruments	SMALL T&R	1	$ 2.48
		100	$ 2.17
		250	$ 1.52
		1000	$ 1.23

Description

General part information

LMR12010 Series

The LMR12010 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin thin SOT23 package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH, the LMR12010 is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13 ns, thus supporting exceptionally high frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 1.6 MHz (LMR12010X) or 3 MHz (LMR12010Y), allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LMR12010 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.