LT8336

RECOMMENDED FOR NEW DESIGNS

40V, 2.5A, Low IQ Synchronous Step-Up Silent Switcher with PassThru

Analog Devices LT8336 Product Info

10 February 2026 5

Features

Silent Switcher^® Architecture
- Ultralow EMI Emissions
- Optional Spread Spectrum Frequency Modulation
Integrated 40V, 2.5A Power Switches
Wide Input/Output Voltage Range: 2.7V to 40V
Low V_IN Pin Quiescent Current:
- 0.3μA in Shutdown
- 4μA in Burst Mode^® Operation
- 15μA in PassThru^™ Operation

100% Duty Cycle Capability for Synchronous MOSFET
Adjustable and Synchronizable: 300kHz to 3MHz
Pulse-Skipping or Burst Mode Operation at Light Load
Output Soft-Start and Power Good Monitor
Internal Compensation
Accurate 1V Enable Pin Threshold
Small 16-Lead (3mm × 3mm) LQFN Package
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LT8336 is a low I_Q, synchronous step-up DC/DC converter. It features Silent Switcher architecture and optional spread spectrum frequency modulation to minimize EMI emissions while delivering high efficiencies at high switching frequencies.

The wide input/output voltage range, low V_IN pin quiescent current in Burst Mode operation, and 100% duty cycle capability for the synchronous MOSFET in PassThru operation (V_IN ≥ V_OUT), make the LT8336 ideally suited for general purpose step-up and automotive preboost applications.

The LT8336 integrates 40V, 2.5A power switches, operating at a fixed switching frequency programmable between 300kHz and 3MHz and synchronizable to an external clock. Pulse-skipping or Burst Mode operation can be selected, with or without spread-spectrum frequency modulation, to optimize efficiency and EMI performance.

The LT8336 features output soft-start, an output power good flag and output overvoltage lockout.

APPLICATIONS

Automotive and Industrial Power Supplies
General Purpose Step-Up

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