LTC3111EDE#TRPBF Positive Adjustable Buck-Boost Switching Regulator IC Electronic Active Components
PRODUCT DESCRIPTION
The LTC®3111 is a fixed frequency, synchronous buckboost DC/DC converter with an extended input and output range. The unique 4-switch, single inductor architecture provides low noise and seamless operation from input voltages above, below or equal to the output voltage.
Withaninput andoutputrangeof 2.5V to 15V, theLTC3111 is well suited for a wide variety of single or multiple-cell batteries, back-upcapacitororwall adapter source applications. Low RDS(ON) internal N-channel MOSFET switches and selectable PWM or Burst Mode operation produce high efficiency over a wide range of operating conditions.
An accurate RUN pin allows the user to program the turn-on threshold voltage of the converter. Other features include: short-circuit protection, internal soft-start and thermal shutdown.
The LTC3111 is offered in both thermally enhanced 14-lead (3mm × 4mm × 0.75mm) DFN and 16-lead MSOP packages.
PRODUCT PROPERTIES
Product Status | Active |
Function | Step-Up/Step-Down |
Output Configuration | Positive |
Topology | Buck-Boost |
Output Type | Adjustable |
Number of Outputs | 1 |
Voltage - Input (Min) | 2.5V |
Voltage - Input (Max) | 15V |
Voltage - Output (Min/Fixed) | 2.5V |
Voltage - Output (Max) | 15V |
Current - Output | 1.5A |
Frequency - Switching | 800kHz |
Synchronous Rectifier | Yes |
Operating Temperature | -40°C ~ 125°C (TJ) |
Mounting Type | Surface Mount |
Package / Case | 14-WFDFN Exposed Pad |
Supplier Device Package | 14-DFN (4x3) |
Base Product Number | LTC3111 |