LTC3115EFE-1#TRPBF Power Path Management IC Switching Voltage Regulators 40V, 2A Sync Buck-Boost DC/DC Conv
microchip battery management
,battery charge management ic
LTC3115EFE-1#TRPBF Power Path Management IC Switching Voltage Regulators 40V, 2A Sync Buck-Boost DC/DC Conv
FeaTures
n Wide VIN Range: 2.7V to 40V
n Wide VOUT Range: 2.7V to 40V
n 1A Output Current for VIN ≥ 3.6V, VOUT = 5V n 2A Output Current in Step-Down Operation for VIN ≥ 6V
n Programmable Frequency: 100kHz to 2MHz
n Synchronizable Up to 2MHz with an External Clock n Up to 95% Efficiency
n 30μA No-Load Quiescent Current in Burst Mode® Operation
n Ultralow Noise Buck-Boost PWM
n Internal Soft-Start
n 3μA Supply Current in Shutdown
n Programmable Input Undervoltage Lockout
n Small 4mm × 5mm × 0.75mm DFN Package n Thermally Enhanced 20-Lead TSSOP Package
ApplicaTions
n 24V/28V Industrial Applications
n Automotive Power Systems
n Telecom, Servers and Networking Equipment n FireWire Regulator
n Multiple Power Source Supplies
DescripTion
The LTC®3115-1 is a high voltage monolithic synchronous buck-boost DC/DC converter. Its wide 2.7V to 40V input and output voltage ranges make it well suited to a wide variety of automotive and industrial applications. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes.
Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to syn- chronize switching to an external clock. Switching frequen- cies up to 2MHz are supported to allow use of small value in- ductors for miniaturization of the application circuit. Pin se- lectable Burst Mode operation reduces standby current and improves light load efficiency which, combined with a 3μA shutdown current, make the LTC3115-1 ideally suited for battery-powered applications. Additional features include output disconnect in shutdown, short-circuit protection and internal soft-start. The LTC3115-1 is available in ther- mally enhanced 16-lead 4mm × 5mm × 0.75mm DFN and 20-lead TSSOP packages.
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