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Texas Instruments LM3370SDX-3621/NOPB — Power Management (PMIC / Gate Driver)

LM3370SDX-3621/NOPB Step-Down Regulator, Dual 600mA, 2MHz

MPNLM3370SDX-3621/NOPB
Obsolete

Texas Instruments LM3370SDX-3621/NOPB, dual 600 mA step-down buck regulator, fixed 1.5 V and 3.3 V outputs, 2 MHz switching frequency, synchronous rectifier, 16-WSON (5x4) package, -30°C to 85°C operating range.

Texas Instruments LM3370SDX-3621/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3370SDX-3621/NOPB specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input5.5V
Voltage - output (Min (Fixed))1.5V, 3.3V
Output current600mA
Frequency - switching2MHz
I/O channels2
Operating temperature-30°C~85°C(TA)
PackageTape & Reel (TR)
FunctionStep-Down
TopologyBuck
Case16-WFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Dual 600 mA step-down for portable power rails

The LM3370SDX-3621/NOPB from Texas Instruments is a dual-output step-down (buck) regulator that delivers a fixed 1.5 V rail and a fixed 3.3 V rail, each rated for 600 mA. The 2 MHz switching frequency lets the designer use small inductors and ceramic caps, shrinking the total footprint for space-constrained portable gear.

Input range and temperature grade

No official successor or recommended replacement is listed in the product status record. No factory lead time applies; stock is drawn from verified surplus and excess inventory.

Frequently asked questions

Is LM3370SDX-3621/NOPB obsolete?

Yes, the product status is listed as Obsolete. No factory lead time or last-time-buy window applies; supply is limited to surplus and excess inventory in the independent channel.

What is the function and typical application of this part?

It is a dual step-down (buck) regulator with fixed 1.5 V and 3.3 V outputs, each rated 600 mA. Typical applications include powering dual-rail portable devices such as media players, handheld instruments, and battery-powered IoT nodes where small size and high efficiency are required.