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Texas Instruments LM5035ASQ — Analog & Data Acquisition

LM5035ASQ Half-Bridge PWM Controller, 200-500 kHz, 13-105 V

MPNLM5035ASQ
End of Life

LM5035ASQ, Half-Bridge PWM Controller, Voltage-Mode, 200 kHz / 500 kHz Switching, Synchronous Rectification, 13 V to 105 V Supply, 24-WFQFN Exposed Pad, -40°C to 125°C.

$2.41Ref. price · indicative, final on quote
Texas Instruments LM5035ASQ datasheet (PDF)
Packaging24-WFQFN Exposed Pad
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM5035ASQ specifications
ParameterValue
Output typeTransistor Driver
MountingSurface Mount
Voltage - supply (Vcc (Vdd))13V ~ 105V
Frequency - switching200kHz, 500kHz
I/O channels1
Output phases1
Operating temperature-40°C ~ 125°C (TJ)
PackageBulk
FunctionStep-Up/Step-Down
TopologyHalf-Bridge
Clock syncYes
Case24-WFQFN Exposed Pad
Control featuresFrequency Control, Ramp, Soft Start
Output configurationPositive, Isolation Capable
Synchronous rectifierYes

Product details

Half-bridge PWM controller for isolated 48 V / 72 V bus converters

The LM5035ASQ is a voltage-mode half-bridge PWM controller for step-up/step-down conversion. It integrates synchronous rectification drive and clock-sync capability. Supply range is 13 V to 105 V; switching frequency is pin-selectable between 200 kHz and 500 kHz.

Synchronous rectification and clock sync

Built-in synchronous rectification drive replaces Schottky catch diodes with MOSFETs. Clock sync lets multiple LM5035ASQ units share a common switching frequency.

RoHS status and lifecycle

It is RoHS non-compliant, which means it cannot be used in assemblies requiring RoHS exemption-free compliance. This is a lead-bearing finish; verify your exemption status before placing it on a RoHS-restricted BOM. The active status and non-RoHS finish together suggest this part is aimed at industrial, military, or high-reliability applications where lead-exempt solder is still accepted.

Frequently asked questions

Is LM5035ASQ discontinued or obsolete?

No, the LM5035ASQ is listed as Active in production. There is no end-of-life notice or last-time-buy window.

Does LM5035ASQ support 500 kHz switching and synchronous rectification?

Yes, the switching frequency is pin-selectable between 200 kHz and 500 kHz, and the controller includes built-in synchronous rectification drive.

Is LM5035ASQ lead-free and RoHS compliant?

No, the LM5035ASQ is RoHS non-compliant. It uses a lead-bearing finish and cannot be used in RoHS-restricted assemblies without an exemption.