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Texas Instruments TPS61103PWR — Power Management (PMIC / Gate Driver)

TPS61103PWR Dual Boost + LDO Regulator, Obsolete

MPNTPS61103PWR
Obsolete

Texas Instruments TPS61103PWR, dual-output power management IC: synchronous boost converter (3.3V, 1.8A) and linear LDO regulator (0.9V–3.6V, 500mA), 500kHz switching, -40°C to 85°C, 20-TSSOP package, Tape & Reel.

$2.6600Ref. price · indicative, final on quote
Texas Instruments TPS61103PWR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61103PWR specifications
ParameterValue
MountingSurface Mount
Supply voltage0.8V ~ 3.3V
Voltage/Current - output 13.3V, 1.8A
Voltage/Current - output 20.9V ~ 3.6V, 500mA
Frequency - switching500kHz
I/O channels2
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR)
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-output PMIC for battery-powered designs

The Texas Instruments TPS61103PWR is a dual-output power management IC that integrates a synchronous step-up (boost) converter and a linear LDO regulator in a single 20-TSSOP package. The boost output delivers a regulated 3.3V at up to 1.8A, while the LDO provides a programmable output from 0.9V to 3.6V at 500mA. The switching frequency is fixed at 500kHz, and the input supply range spans 0.8V to 3.3V, allowing operation from a single-cell alkaline or Li-ion battery down to near end-of-discharge.

Boost output: 3.3V at 1.8A for system rail

The synchronous boost converter (Output 1) is rated for 3.3V at 1.8A — enough headroom to power a small microcontroller, RF transceiver, or sensor cluster from a single-cell battery.

LDO output: programmable 0.9V to 3.6V at 500mA

The linear regulator (Output 2) provides a clean, low-noise rail adjustable from 0.9V to 3.6V at 500mA — suitable for powering analog front-ends, audio codecs, or low-voltage digital cores that need ripple rejection the boost alone cannot deliver.

The 20-TSSOP package with 0.65mm pitch is layout-friendly on two-layer boards.

No official successor or recommended alternate part number is listed in the product status record.

Frequently asked questions

What is the difference between TPS61103PWR and TPS61107PWR?

The TPS61103PWR and TPS61107PWR are both dual-output boost + LDO regulators in the same family, but the TPS61107PWR offers a higher boost output voltage (5V vs 3.3V) and a different LDO output range. The TPS61103PWR is optimized for 3.3V system rails; the TPS61107PWR targets 5V rails. Pin compatibility should be verified against the respective datasheets.

What are the TPS61103PWR specifications and pinout?

Key specifications: synchronous boost converter output 3.3V at 1.8A, LDO output adjustable 0.9V to 3.6V at 500mA, switching frequency 500kHz, input voltage range 0.8V to 3.3V, operating temperature -40°C to 85°C, package 20-TSSOP. Pinout details are in the Texas Instruments datasheet; no pin map is reproduced here.