LTC3835-1

PRODUCTION

Low IQ Synchronous Step-Down Controller

Analog Devices LTC3835-1 Product Info

10 February 2026 5

Features

Wide Output Voltage Range: 0.8V ≤ V_OUT ≤ 10V
Low Operating I_Q: 80µA
OPTI-LOOP^® Compensation Minimizes C_OUT
±1% Output Voltage Accuracy
Wide V_IN Range: 4V to 36V Operation
Phase-Lockable Fixed Frequency 140kHz to 650kHz
Dual N-Channel MOSFET Synchronous Drive

Very Low Dropout Operation: 99% Duty Cycle
Adjustable Output Voltage Soft-Start or Tracking
Output Current Foldback Limiting
Output Overvoltage Protection
Low Shutdown I_Q: 10µA
Selectable Continuous, Pulse-Skipping or Burst Mode^®Operation at Light Loads
Small 16-Lead Narrow SSOP or 3mm × 5mm DFN Package

Part details & applications

The LTC3835-1 is a high performance step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 650kHz.

The 80µA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3835-1 features a precision 0.8V reference and a power good output indicator. The 4V to 36V input supply range encompasses a wide range of battery chemistries.

The TRACK/SS pin ramps the output voltage during startup. Current foldback limits MOSFET heat dissipation during short-circuit conditions.

Comparison of LTC3835 and LTC3835-1
	CLKOUT/PHASMD	EXTVCC	PGOOD	Package
LTC3835	Yes	Yes	Yes	TSSOP-20, 4x5 QFN-20
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