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Texas Instruments TPS61100PWG4 — Power Management (PMIC / Gate Driver)

TPS61100PWG4 Boost + LDO PMIC, 500kHz, 20-TSSOP

MPNTPS61100PWG4
End of Life

Texas Instruments TPS61100PWG4, Power Management IC, Dual-Output: Synchronous Step-Up Boost (1.8A) + Linear LDO (500mA), 500kHz Switching, 20-TSSOP Package, -40°C to 85°C.

Texas Instruments TPS61100PWG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61100PWG4 specifications
ParameterValue
MountingSurface Mount
Supply voltage0.8V ~ 3.3V
Voltage/Current - output 11.5V ~ 5.5V, 1.8A
Voltage/Current - output 20.9V ~ 3.6V, 500mA
Frequency - switching500kHz
I/O channels2
Operating temperature-40°C~85°C
PackageTube
TopologyStep-Up (Boost) Synchronous (1), Linear (LDO) (1)
W (Sequencer)No
W (LED driver)No
W (Supervisor)No
Case20-TSSOP (0.173\", 4.40mm Width)

Product details

Dual-rail power in a single 20-TSSOP package

The Texas Instruments TPS61100PWG4 integrates a synchronous step-up (boost) converter and a linear LDO regulator into one 20-pin TSSOP package, delivering two independently programmable output rails from a single input supply. The boost output handles 1.5V to 5.5V at up to 1.8A, while the LDO provides 0.9V to 3.6V at 500mA — covering the typical dual-rail needs of a battery-powered design: a main system rail and a lower-voltage analog or I/O rail.

Input range and switching frequency — inductor and cap selection

The supply range spans 0.8V to 3.3V, accepting a single Li-ion cell down to its end-of-discharge voltage or two alkaline cells in series. A fixed 500 kHz switching frequency sets the inductor ripple current and output capacitor ripple voltage — a 4.7 µH to 10 µH inductor and a 10 µF to 22 µF ceramic output cap are typical for the boost section, depending on the target output current.

Frequently asked questions

Does TPS61100PWG4 come in a tube?

Yes, the listed packaging form is Tube.

What is the difference between TPS61100PWG4 and TPS61100PW?

The base product number is TPS61100; the suffix 'G4' indicates a lead-free (RoHS-compliant) finish variant. The electrical specifications and package (20-TSSOP) are identical between the two suffix versions.