Features

• Complete Switch Mode Power Supply
• Low Quiescent Current Burst Mode® Operation
• 5μA I_Q at 12V_IN to 3.3V_OUT
• 600mA Output Current
• Wide Input Voltage Range: 4.5V to 36V (40V_MAX)
• Output Voltage: 1.2V to 18V
• Excellent Dropout Performance
• Can Be Used As an Inverter
• Adjustable Switching Frequency: 200kHz to 2.2MHz
• Current Mode Control
• SnPb or RoHS Compliant Finish
• Tiny, Low Profile (11.25mm × 6.25mm × 3.42mm) Surface Mount BGA Package

Typical Application

Description

The LTM®8029 is a 36VIN, 600mA step-down μModule® (power module) converter with 5μA quiescent current. It is an adjustable frequency buck switching regulator that consumes only 5μA of quiescent current. The LTM8029 can accept an input as high as 36V_IN and operates at low input voltages due to its off-time skipping capability. Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple low. The RUN pin features an accurate threshold and the shutdown current is 0.9μA. A power good flag signals when V_OUT reaches 90% of the programmed output voltage.

The LTM8029 is packaged in a thermally enhanced, compact (11.25mm × 6.25mm) and low profile (3.42mm) overmolded ball grid array (BGA) package. The LTM8029 is available with SnPb (BGA) or RoHS compliant terminal finish.