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Analog Devices LTC3115IDHD-1#TRPBF — Discrete Semiconductors

LTC3115IDHD-1#TRPBF Buck-Boost Regulator, 1A/2A Output

MPNLTC3115IDHD-1#TRPBF
End of Life

Analog Devices LTC3115IDHD-1#TRPBF, Step-Up/Step-Down (Buck-Boost) adjustable output regulator, 2.2V to 40V input range, 1A/2A output current, synchronous rectifier, 100kHz to 2MHz switching frequency, -40°C to 125°C junction temperature, 16-WFDFN Exposed Pad package.

$14.87Ref. price · indicative, final on quote
Packaging16-WFDFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LTC3115IDHD-1#TRPBF specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input2.2V
Voltage - output40V
Voltage - output (Min (Fixed))2.7V
Output current1A, 2A
Frequency100kHz ~ 2MHz
I/O channels1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up/Step-Down
TopologyBuck-Boost
Case16-WFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Buck-boost regulator for wide-input-rail designs

The LTC3115IDHD-1#TRPBF: Step-up/step-down (buck-boost) switching regulator with adjustable output from a 2.2 V to 40 V input supply. Integrates synchronous rectification and provides 1 A continuous output current with 2 A switch current limit.

The 1 A output rating is the continuous load the regulator can hold in regulation across the full input range; the 2 A figure is the peak switch current limit.

Switching frequency — inductor sizing vs efficiency trade-off

Switching frequency is programmable from 100 kHz to 2 MHz via an external resistor. Input voltage range is 2.2 V to 40 V.

Active product status and ROHS3 compliant. No last-time-buy notice or obsolescence PCN announced. Output current is 1 A.

Frequently asked questions

What is the output current capability of LTC3115IDHD-1#TRPBF?

The LTC3115IDHD-1#TRPBF delivers a continuous output current of 1 A, with a 2 A peak switch current limit on the input side. The 1 A rating is the maximum load the regulator can sustain in regulation across the input voltage range.

Does LTC3115IDHD-1#TRPBF require any external components?

Yes, like any switching regulator, it requires external inductors, input/output capacitors, and feedback resistors to set the output voltage. The switching frequency is set by an external resistor. The datasheet provides typical application circuits.