LTINEAR LTC1430CS8

Mfr. Part

LTC1430CS8

Manufacturer

LTINEAR (Linear Technology). Y-IC is a quality distributor for this brand and we will deliver the best products and services, fast and reliably, with professional technical support.

Detailed Description

High‑efficiency synchronous step‑down (buck) switching regulator controller in an 8‑pin SOIC package. Designed to drive external MOSFETs for compact, efficient DC/DC conversion. The “C” grade denotes commercial temperature range; “S8” denotes SOIC‑8 package. Ideal when you need a simple, small‑footprint controller that achieves low loss and tight regulation across a wide range of loads.

Key Features

Synchronous buck controller for high efficiency across the load range

External MOSFET gate drive for flexible current capability

Constant‑frequency PWM operation for low output ripple

Current limiting and fault protection features (family‑typical)

Soft‑start capability to reduce inrush stress (family‑typical)

Wide input voltage applicability with proper external component selection

Low quiescent/standby consumption compared to linear solutions

8‑pin SOIC simplifies layout and reduces board space

Key Advantages

Higher efficiency than linear regulators, especially at medium to high load

Flexible design: choose external MOSFETs and passives to meet your power/thermal goals

Compact footprint and straightforward PCB routing

Stable, predictable operation with constant switching frequency

Robust protection helps improve system reliability

Proven LTC power‑controller lineage trusted in industrial, computing, and telecom designs

Packaging

Type: SOP‑8 (SOIC‑8, narrow body, 8‑lead)

Material: Molded epoxy encapsulation, copper leadframe, matte‑tin plated leads (Pb‑free/RoHS friendly variants typically available)

Size: Approx. 4.90 mm × 3.90 mm body, ~1.5 mm thickness; lead pitch 1.27 mm; 8 leads

Pin configuration: 8 pins for supply, ground, control, sense, and gate‑drive functions (exact pinout per datasheet)

Thermal characteristics: No exposed pad; thermal performance depends on PCB copper area and airflow; use solid ground plane and generous copper to improve heat spreading

Electrical properties: Designed to drive external MOSFETs; constant‑frequency PWM control; supports synchronous rectification; low operating and standby currents; detailed limits and conditions are in the datasheet

Lifecycle

Status: As of the latest public information, LTC1430 family parts are generally supported by Analog Devices (Linear Technology brand). Availability can vary by region and date code. Not indicated as near end‑of‑life in typical distributor channels, but always verify current status.

Equivalent or alternative models:

- LTC1772 (Linear/ADI) — compact current‑mode step‑down controller in SO‑8; functionally similar for many buck designs

- LTC1622 (Linear/ADI) — step‑down controller, small package, suitable alternative depending on requirements

- LTC1436 series (Linear/ADI) — synchronous step‑down controllers for higher performance and feature sets (different pin counts)

- Maxim Integrated (Analog Devices) MAX1630/1631 family — synchronous buck controllers used in portable systems (not pin‑compatible; evaluate per design)

- Texas Instruments TL5001/TPS54xxx families — PWM controllers and integrated buck converters (not pin‑compatible; evaluate per design)

Note: Alternatives listed are functional substitutes, not guaranteed pin‑compatible. Compare electrical specs, pinout, and startup/compensation details. If you need drop‑in or vetted replacements, contact our sales team via the Y-IC website for tailored guidance.

Key Application Areas

Notebook and desktop power rails (e.g., 5 V to 3.3 V/2.5 V conversions)

Embedded systems and single‑board computers

Industrial control and automation power supplies

Telecom and networking equipment DC/DC stages

Instrumentation and test equipment

General point‑of‑load regulation where efficient step‑down conversion is needed

Datasheet

Y-IC hosts the most authoritative datasheet for LTC1430CS8 on our product page. For the latest pinout, electrical limits, design guidelines, and application notes, download the datasheet directly from our site now.

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