Quick, Easy Design with SIMPLE SWITCHER® Controllers and Regulators and WEBENCH® Power Designer

LM2267x and LM22680 SIMPLE SWITCHER Regulators
The LM2267x and LM22680 SIMPLE SWITCHER regulators provide intuitive, easy-to-use design capabilities while delivering high performance and flexibility.

Features:

• Wide input voltage range from 4.5V to 42V
• Load currents from 0.5A to 5A
• Adjustable and fixed output voltages down to 1.285V
• Adjustable and fixed switching frequencies allow for optimization between size and efficiency (up to 1 MHz)
• Frequency sync up to 1 MHz allows for easy management of EMI and/or input capacitance optimization
• Precision enable: precise turn-on and turn-off for power sequencing needs assists with proper system startup
• External soft-start: flexibility to control output voltage rampup, ensuring proper end-system startup to avoid latch-up conditions
• PSOP-8 and TO263-7 THIN packages: exposed DAPs provide enhanced thermal dissipation, halogen-free and lead-free

LM315x SIMPLE SWITCHER Controllers
Designed to support higher current applications, the LM315x SIMPLE SWITCHER controllers are National’s newest addition to this popular brand of switching solutions.

LM315x Features:

• Input voltage ranging from 6V to 42V
• Output current up to 12A
• Constant On-Time control eliminates the need for complex compensation circuitry
• Patent-pending Emulated Ripple Mode allows for the use of low-ESR output capacitors for reduced solution size and reduced output voltage ripple
• Synchronous architecture for added efficiency
• Exposed pad TSSOP-14 package for enhanced thermal performance

LM3150 Features:

• Adjustable output voltage down to 0.6V
• Adjustable frequency up to 1 MHz
• LM3151/52/53 Features:
• Fixed output voltage: 3.3V
• Fixed frequencies: 250 kHz, 500 kHz, 750 kHz

National’s SIMPLE SWITCHER® family products offer performance, flexibility, and time-saving design capabilities utilizing the WEBENCH® Power Designer tool
National’s award-winning SIMPLE SWITCHER products allow you to design and optimize robust power supplies with a minimum set of external components. Supporting input voltage ranges of 3V to 75V, each SIMPLE SWITCHER series provides you with multiple products that have pin-to-pin compatibility for added design flexibility. What's more, all SIMPLE SWITCHER products utilize National's WEBENCH Power Designer end-to-end design and prototyping tools.

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