LT1054CS8#PBF

Voltage - Output (Min/Fixed):	2.5V (-Vin, 2Vin)
Base Part Number:	LT1054
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 100°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	25kHz
Current - Output:	100mA
Voltage - Output (Max):	30V
Series:	--
Voltage - Input (Max):	15V
Voltage - Input (Min):	3.5V
Number of Outputs:	1
Output Type:	Adjustable (Fixed)
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric, Step-Up
Part Status:	Active
Packaging:	Tube

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PMIC - Voltage Regulators - DC DC Switching Regulators

The LT1054CS8#PBF is a switching mode DC/DC voltage regulator designed to be used with AA, AAA, and other varieties of rechargeable batteries. It provides a regulated output of 3 to 5 volts from a single AAA battery or up to 7 volts from two NiMH source batteries. With an input voltage of from 0.7 V to 6.6 V and an input current range of 0.1 A to 6.5 A, the LT1054CS8#PBF provides high power transfer efficiency and low heat dissipation.The LT1054CS8#PBF features protection features such as over-temperature protection (OTP) and over-voltage protection (OVP), as well as short-circuit protection (SCP). It also has a pulse-frequency modulation (PFM) control loop that extends battery life by reducing switching frequency and quiescent current consumption. The LT1054CS8#PBF achieves up to 98% efficiency in most typical applications.The LT1054CS8#PBF’s switching mode power regulation employs an internal, high speed, MOSFET switch, designed to handle fast voltage transitions. This switching mode operation reduces power consumption and enables the regulator to maintain a constant output voltage and current over a wide range of load and input conditions. The output of the LT1054CS8#PBF is adjustable, allowing for the output voltage to range from 0.7V to 5.5V and the output current ranging from 0.1A to 6.5A, depending on the application.The LT1054CS8#PBF’s integrated circuit (IC) is designed to simplify the design of DC/DC voltage converters. The circuit includes an energetic oscillator, an error-amplifier, a logic-controlled PWM comparator, current and voltage sensing circuits, a reference generator circuit, a temperature sensor, and a power MOSFET output switch, with an internal driver circuit. Its features make it suitable for applications in the automotive, industrial, communication, and consumer markets. The LT1054CS8#PBF has a wide variety of applications. It is well suited for powering portable media players, mobile phones, PDAs, digital cameras, radios and MP3 players. It is also used in automotive applications such as battery charging, solar panel voltage regulation, and LED lighting applications. It finds use in industrial applications such as power supplies, DC/DC converters, active speaker protection, and laptop adaptors.In conclusion, the LT1054CS8#PBF is an efficient, highly reliable DC/DC voltage regulator designed for use in an array of applications. Its MOSFET switch provides fast voltage transitions and its internal PWM control loop extends battery life. Its 0.7 V to 6.6 V input voltage range, 0.1 A to 6.5 A input current range, and adjustable output current and voltage range make it suitable for a wide variety of applications.

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