MIC23158YML-T5

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The MIC23158YML-T5 is a DC DC switching regulator from the range of PMICs (Power Management Integrated Circuits) and Voltage Regulators developed by Micrel Inc. It provides an efficient and accurate solution for driving a step-up buck-boost regulator with fixed output settings, allowing for DC input supply voltages of 3.0V to 17.5V and adjustable output voltage levels ranging from 1.8V to 8.5V.

The MIC23158YML-T5 is designed to operate at up to +85°C junction temperatures and provides excellent thermal performance due to its low on-resistance (R DS(on)) and low quiescent current. Its integrated high-speed driver circuitry allows for a small footprint which eases its installation in most applications. Additionally, this device features current monitoring, low R DS(on) levels and a low dropout voltage (V drop). It is also available in a simple 8-pin MLF (1.2mm x 1.2mm) as well as with ceramic package options, which makes it suitable for a wide range of space-constrained applications.

The MIC23158YML-T5 application field includes but is not limited to Instrumentation, High Power LEDs, Point-of-Loads and Industrial Control Systems. It is also suitable for automotive applications.

The working principle of the MIC23158YML-T5 is based on a synchronous buck-boost topology, a DC-DC converter that combines the features of both buck/step-down and boost/step-up regulators. When the output voltage is higher than the input voltage, the MIC23158YML-T5 will operate in boost mode, while when the output voltage is lower than the input voltage, the device will operate in buck mode. The converter\'s output voltage is set via two external resistors. The topology provides high efficiency operation, with an integrated driver circuit that allows for an impressive 95% peak efficiency – even at light loads.

The MIC23158YML-T5 is also equipped with various protection features for improved system reliability, including short-circuit protection, over-temperature protection, over-voltage protection, and over-current protection. The device also supports a soft start feature that can greatly reduce the inrush current at startup, allowing for smoother system operation.

In summary, the MIC23158YML-T5 is a highly efficient DC DC switching regulator from the range of PMICs and Voltage Regulators suitable for a wide range of applications with space-constrained installation requirements. Its synchronous buck-boost topology, improved thermal performance and high efficiency, ease of implementation and extra protection features make it an ideal choice for many applications.

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