1FEATURES
2• Input Voltage from 2.9V to 18V
• Output Voltage Adjustable from 0.6V to 5.5V
• Feedback Accuracy: ±1%
• Low-Side Sensing, Programmable Current
Limit without Sense Resistor
• Input Under Voltage Lockout
• Hiccup Mode Current Limit Protection
Eliminates Thermal Runaway During Fault
Conditions start•
Internal Soft Start with Tracking Capability
• 200 kHz to 1.5 MHz Switching Frequency,
Synchronizable
• On-Chip Gate Drivers
• Soft Output Discharge During Shutdown
• Startup into Output Pre-Bias
• Operation from a Single Input Rail
• Adaptive Duty Cycle Limit
• TSSOP-16 Package

DESCRIPTION
The LM3495 is a PWM buck regulator which
implements a unique emulated peak current mode
control. This control method eliminates the switching
noise which typically limits current mode operation at
extremely short duty cycles and high operating
frequency. The switching frequency is programmable
between 200 kHz and 1.5 MHz, and can also be
synchronized to an external clock. The LM3495 is
also very fault tolerant with both switch node short,
hiccup mode, and adaptive duty cycle limit protection.
A 0.6V 1% reference and glitch free pre-biased start•
up ensure the most demanding digital loads operate
reliably. Internal soft start and the ability to track the
output of another supply make the LM3495 versatile
and efficient.

APPLICATIONS
• Wide Input Voltage Buck Converters with Low
Voltage, High Accuracy Outputs
• Core Logic Regulators
• High-Efficiency Buck Regulation