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Analog Devices LTC1148LCS-3.3#PBF — Analog & Data Acquisition
Analog Devices

LTC1148LCS-3.3#PBF Buck Controller, 250kHz, 14-SOIC

MPNLTC1148LCS-3.3#PBF
End of Life

Analog Devices LTC1148LCS-3.3#PBF, Step-Down Buck Controller, 1 Output, Transistor Driver, 3.5V to 20V Supply, Up to 250kHz, 14-SOIC, 0°C to 70°C.

$13.18Ref. price · indicative, final on quote
LTC1148LCS-3.3#PBF datasheet
Packaging14-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LTC1148LCS-3.3#PBF Technical Specifications
ParameterValue
Output typeTransistor Driver
Mounting typeSurface Mount
Voltage - supply (Vcc (Vdd))3.5V ~ 20V
FrequencyUp to 250kHz
Number of outputs1
Output phases1
Duty cycle100%
Operating temperature0°C ~ 70°C (TA)
PackageTube
FunctionStep-Down
TopologyBuck
Clock syncNo
Case14-SOIC (0.154\", 3.90mm Width)
Control featuresCurrent Limit, Enable
Output configurationPositive
Synchronous rectifierYes

Product details

Package and mounting

Housed in a 14-lead SOIC with 3.90 mm body width, surface-mount. The 14-SO package is a standard footprint shared by many Linear Technology / Analog Devices power controllers, so the board layout is straightforward. Supplied in tube — if your pick-and-place line prefers tape, confirm the reel option at quote time.

Lifecycle and sourcing posture

Listed as Active with ROHS3 compliance. For dual-source planning, the closest functional peer is the LTC1148CS#PBF: same buck controller, same 14-SOIC package, same 0°C to 70°C temperature grade, same synchronous rectification and 250 kHz switching ceiling. The LTC1148CS#PBF is a validated second source for the same BOM footprint.

Frequently asked questions

Does LTC1148LCS-3.3#PBF have synchronous rectification?

Yes — it includes a synchronous rectifier driver, which actively drives the low-side N-channel MOSFET for higher efficiency compared to a diode-based freewheeling path.

What is the switching frequency of LTC1148LCS-3.3#PBF?

The switching frequency is rated up to 250 kHz. This is a moderate frequency that allows simpler layout and larger passive components.