910.25

Features:

• Supply voltage range VS 3.0V to 60V
• Up to 90% efficiency
• 40A standby current
• 180A circuit operating current
• 1.5V to 24V or more adjustable output voltage
• Up to 300kHz switching frequency
• Improved current-limited PFM control scheme
• High current driver for external MOSFET
• Under-voltage lockout and thermal shutdown
• -40 to 125 operating temperature
• SO8 package
• 910.26 basis version
• 910.24 additive with peak current halving for medium loads and extended max. switch-on-time
• 910.25 additive with peak current halving formedium loads and extended max. switch-on-time and fault protection


Application

• Minimum component DC-DC converters
• 14V, 28V or 42V automotive systems
• Power conditioning for portable equipment
• High efficiency on-card switching regulators


Pinout




Description

The 910.25 family of highly flexible, easy to use PFM controllers is ideal for the use in wide input range switching regulator applications.

An advanced PFM control scheme of 910.25 gives these devices the benefits of PWM converters with high efficiency for heavy loads, while using very low operating current for light loads to maintain excellent behaviour with output load variation.

The switching circuits of 910.25 are suitable for topologies requiring low side FET, such as boost, flyback, Sepic, etc. Depending on the utilized topology the controllers are capable of producing regulated positive or negative output voltage.

Operating from 3V to 60V supply and in temperature ranges from -40 to 125 the 910.25 is well suited for automotive applications. Requiring a minimum number of external components, these regulators are simple to use and cost-saving.

Self-protection features of 910.25 include an overload detection circuit, an overtemperature shutdown under fault conditions and an under-voltage lockout.