LM2678T-ADJ SIMPLE SWITCHER High Efficiency 5A Step Down Voltage Regulator

LM2678T-ADJ
SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

FEATURES

• Efficiency Up to 92%

• Simple and Easy to Design with (Using Off-The-Shelf External Components)

• 120 mΩ DMOS Output Switch

• 3.3V, 5V and 12V Fixed Output and Adjustable (1.2V to 37V ) Versions

• 50μA Standby Current When Switched OFF
• ±2% Maximum Output Tolerance Over Full Line and Load Conditions

• Wide Input Voltage Range: 8V to 40V

• 260 KHz Fixed Frequency Internal Oscillator

• −40 to +125°C Operating Junction Temperature Range

APPLICATIONS

• Simple to Design, High Efficiency (>90%) Step-Down Switching Regulators

• Efficient System Pre-Regulator for Linear Voltage Regulators

• Battery Chargers

Absolute Maximum Ratings (1) (2)

(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions under which of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and associated test condition, see the Electrical Characteristics tables.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications.
(3) The absolute maximum specification of the 'Switch Voltage to Ground' applies to DC voltage. An extended negative voltage limit of -10V applies to a pulse of up to 20 ns, -6V of 60 ns and -3V of up to 100 ns.
(4) ESD was applied using the human-body model, a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin.

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