Specification	LM3370SDX-4221/NOPB

Current - Output	600 mA
Frequency - Switching	2 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-30 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	16-WFDFN Exposed Pad
Supplier Device Package	16-WSON (5x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Min/Fixed)	1.8 V, 3.3 V

LM3370 Series

Part	Supplier Device Package	Package / Case	Function	Voltage - Output (Min/Fixed)	Current - Output	Frequency - Switching	Output Type	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Mounting Type	Output Configuration	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)	Main Purpose	Board Type	Supplied Contents	Utilized IC / Part	Regulator Topology	Voltage - Output	Outputs and Type	Outputs and Type	Voltage - Input [Min]	Voltage - Input [Max]
Texas Instruments LM3370SDX-4221/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.8 V 3.3 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370TLX-3607/NOPB	20-DSBGA	20-WFBGA	Step-Down	1.5 V 1.9 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370SD-3013/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.2 V 2.5 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370SDX-3013/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.2 V 2.5 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370SD-3806/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.6 V 1.8 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370SDX-3416/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.4 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V	2.8 V
Texas Instruments LM3370SD-3021EV					600 mA	2 MHz											DC/DC Step Down	Fully Populated	Board(s)	LM3370	Buck	1.2 V 3.3 V	2	Non-Isolated	2.7 V	5.5 V
Texas Instruments LM3370TLX-3006/NOPB	20-DSBGA	20-WFBGA	Step-Down	1.2 V 1.8 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370SDX-3021/NOPB	16-WSON (5x4)	16-WFDFN Exposed Pad	Step-Down	1.2 V 3.3 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V
Texas Instruments LM3370TLX-3022/NOPB	20-DSBGA	20-WFBGA	Step-Down	1.2 V 1.85 V	600 mA	2 MHz	1.81 mOhm	2	-30 °C	85 °C	Buck	Surface Mount	Positive	5.5 V	2.7 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	4500	$ 0.79
		9000	$ 0.76
		13500	$ 0.73
LCSC	Piece	1	$ 0.63
		10	$ 0.51
		30	$ 0.45
		100	$ 0.39
		500	$ 0.35
		1000	$ 0.33
Texas Instruments	LARGE T&R	1	$ 1.30
		100	$ 1.07
		250	$ 0.77
		1000	$ 0.58

Description

General part information

LM3370 Series

The LM3370 is a dual step-down DC-DC converter optimized for powering ultra-low voltage circuits from a single Li-Ion battery and input rail ranging from 2.7V to 5.5V. It provides two outputs with 600mA load per channel. The output voltage range varies from 1V to 3.3V and can be dynamically controlled using the I2C-compatible interface. This dynamic voltage scaling function allows processors to achieve maximum performance at the lowest power level. The I2C-compatible interface can also be used to control auto PFM-PWM/PWM mode selection and other performance enhancing features.

The LM3370 offers superior features and performance for portable systems with complex power management requirements. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system efficiency. Internal synchronous rectification enhances the converter efficiency without the use of further external devices.

There is a power-on-reset function that monitors the level of the output voltage to avoid unexpected power losses. The independent enable pin for each output allows for simple and effective power sequencing.

Documents

Technical documentation and resources

LM3370 Dual Synch Step-Down DC-DC Converter w/Dyn Volt Scaling Func datasheet (Rev. N)

Data sheet

LM3370SDX-4221/NOPB

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LM3370SDX-4221/NOPB

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Technical Specifications

LM3370 Series

Pricing

Description

LM3370 Series

Documents

Implementing Single-Chip FPGA Power Solutions

Advanced Topics in Powering FPGAs

AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A)

Enhancing Bit-Flip Recovery and PMU Design For Defense/Industrial Applications

AN-1428 LM3370 Evaluation Board (Rev. D)

LM3370 Dual Synch Step-Down DC-DC Converter w/Dyn Volt Scaling Func datasheet (Rev. N)

LM3370 Series