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Texas Instruments TPS65131RGER — Power Management (PMIC / Gate Driver)

TPS65131RGER Dual Rail Boost/Buck-Boost Regulator - TI

MPNTPS65131RGER
Active

Texas Instruments TPS65131RGER, dual-output adjustable boost and buck-boost regulator, 1.8A switch, 2.7V–5.5V input, ±15V outputs, 24-VQFN exposed pad, active production.

$3.0000Ref. price · indicative, final on quote
Texas Instruments TPS65131RGER datasheet (PDF)
Packaging24-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS65131RGER specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input5.5V
Voltage - output15V, -15V
Voltage - output (Min (Fixed))3.2V, -2V
Output current1.8A (Switch)
Frequency - switching1.38MHz
I/O channels2
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up, Step-Up/Step-Down
TopologyBoost, Buck-Boost
Case24-VFQFN Exposed Pad
Output configurationPositive and Negative (Dual Rail)
Synchronous rectifierNo

Product details

Dual-rail generation from a single IC

The TPS65131RGER is a dual-output regulator that integrates a boost and a buck-boost converter in one 24-VQFN package, producing both a positive and a negative adjustable rail from a single 2.7V to 5.5V input. The 1.8A switch current on each channel supports loads like OLED bias, CCD sensor supplies, or op-amp rails where a split supply is needed without a transformer.

Output voltage range and switching frequency

The positive output adjusts from a 3.2V minimum up to 15V; the negative output adjusts from -2V down to -15V.

Frequently asked questions

Can TPS65131RGER output both positive and negative voltages simultaneously?

Yes — the device has two independent converters: one boost for the positive rail and one buck-boost for the negative rail. The positive output is adjustable from 3.2V to 15V, and the negative from -2V to -15V, both referenced to the same ground.

Is TPS65131RGER a direct replacement for the LM2750LD-ADJ/NOPB?

No — the LM2750 is a single-output charge pump (positive only, 120 mA max) with a 1.7MHz switching frequency. The TPS65131RGER is a dual-rail inductor-based regulator with 1.8A switches and buck-boost capability for negative outputs. They are not pin-compatible or functionally equivalent.