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Analog Devices LTC7812HUH#PBF — Discrete Semiconductors

LTC7812HUH#PBF Buck-Boost Controller, 32-QFN, Active

MPNLTC7812HUH#PBF
End of Life

Analog Devices LTC7812HUH#PBF, IC REG CTRLR BUCK/BOOST 32QFN, dual-output non-synchronous controller, 4.5V-38V supply, 115kHz-835kHz switching, -40°C to 150°C junction, 32-WFQFN exposed pad.

$11.62Ref. price · indicative, final on quote
Packaging32-WFQFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LTC7812HUH#PBF specifications
ParameterValue
Output typeTransistor Driver
MountingSurface Mount
Voltage - supply (Vcc (Vdd))4.5V ~ 38V
Frequency115kHz ~ 835kHz, 350kHz ~ 535kHz
I/O channels2
Output phases1
Duty cycle96%, 99%
Operating temperature-40°C ~ 150°C (TJ)
PackageTube
FunctionStep-Up, Step-Down
TopologyBuck, Boost
Clock syncNo
Case32-WFQFN Exposed Pad
Control featuresEnable, Frequency Control, Power Good, Soft Start, Tracking
Output configurationPositive
Synchronous rectifierNo

Product details

Dual-output buck-boost controller for non-synchronous rails

The LTC7812HUH#PBF is a dual-output, non-synchronous switching regulator controller from Analog Devices that handles both step-up (boost) and step-down (buck) topologies.

Switching frequency and output flexibility

Two independent switching-frequency ranges are available: a wide band from 115 kHz to 835 kHz, and a narrower band from 350 kHz to 535 kHz. The lower end suits designs where efficiency and thermal management take priority; the upper end shrinks the magnetics and output capacitors. Each of the two outputs can be configured independently as a buck or a boost, and the controller supports a maximum duty cycle of 96% for the buck channel and 99% for the boost channel. Control features include enable, frequency control, power-good flag, soft-start, and tracking — enough to sequence multiple rails without an external supervisor.

Housed in a 32-lead WFQFN with exposed pad (5 mm × 5 mm body), the LTC7812HUH#PBF is a surface-mount part.

Marked as Active on the manufacturer's product status. The part is ROHS3 compliant.

Frequently asked questions

What is the LTC7812HUH#PBF datasheet?

The full datasheet from Analog Devices covers the pinout, application circuits, inductor selection, and thermal layout for the 32-QFN package. It is available from the manufacturer's website.

What is the difference between LTC7812 and LTC7813?

The LTC7813 is a synchronous buck-boost controller with two outputs; the LTC7812 is non-synchronous. The LTC7813 integrates the low-side MOSFET drivers for higher efficiency at heavy loads, while the LTC7812 drives external transistors and allows independent buck or boost configuration per channel.

Can LTC7812HUH#PBF be used for step-up only?

Yes. Each of the two outputs can be configured independently as a boost (step-up) converter. The controller supports a 99% maximum duty cycle on the boost channel.

Where can I buy LTC7812HUH#PBF available via RFQ confirmation?

Contact our sales team for current stock and pricing. The part is sourced to order, with availability and pricing confirmed at quote time.