LTC3121IDE#TRPBF

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The Texas Instruments LTC3121 is a highly efficient and highly flexible pulse-width modulated (PWM) DC-to-DC step-up converter. It is ideal for powering low-voltage, ultra-low power applications from small portable batteries. With its SWIFT architecture and patented 3-state Auto-PWM Control, the LTC3121 offers efficiency up to 95%, extremely low quiescent current and very small external components.

The LTC3121IDE#TRPBF is a complete DC-to-DC converter solution in a 6.58 mm × 9.70 mm package. It is designed to provide a reliable, small size and high power density step-up converter solution in portable devices running on battery power such as wearables and IoT applications. The device converter operates at up to 5.5V input voltage and provides a regulated output voltage up to 5.5V at 300mA. The LTC3121 supports a wide input voltage range from 1V to 5.5V, under which the output voltage remains stable and regulated.

The LTC3121IDE#TRPBF is highly efficient with efficiency up to 95%. The device features a mode-hopping architecture where the converter automatically switches between different modes and adjusts the PWM frequency to maintain the output. This dynamic mode-hopping technique enables the LTC3121 to remain in optimal efficiency at the widest possible range of light-load conditions.

The LTC3121IDE#TRPBF features a patented 3-state Auto-PWM control technique. This PWM control method is designed to reduce the switching noise and to deliver optimal noise-free transient performance and high efficiency. The 3-state mode also helps to eliminate noise peaks in the regulated output voltage. The device also features an adaptive on-time and cycle-by-cycle current limit control to ensure safe and reliable operation of the device over all conditions.

In addition to regulation, the LTC3121IDE#TRPBF also features a programmable soft-start and a programmable power saving shutdown mode. The devices can be placed in very low power shutdown with current consumption less than 1µA. The device also features a programmable pull-up and pull-down current limit to help reduce component count.

The LTC3121IDE#TRPBF offer a wide range of application fields for portable, battery powered applications. This device is ideal for wearable or IoT applications and other portable devices where low voltage and ultra low power is required. It is also suitable for powering LED drivers, RF power amplifiers and other RF applications.

The LTC3121IDE#TRPBF operates with a 2.2V to 5.5V input voltage range, and provides high efficiency step-up conversion from the battery to the regulated output voltage. The device features a highly efficient switch-mode power conversion and a patented 3-state auto-PWM control that reduce switching noise and ensure noise-free transient performance for the output voltage. The device also includes a programmable soft-start and shutdown feature. All of these features make the LTC3121IDE#TRPBF an ideal solution for low-voltage and ultra-low power applications.

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