| Allicdata Part #: | LT1737CS#TRPBF-ND |
| Manufacturer Part#: |
LT1737CS#TRPBF |
| Price: | $ 2.16 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Linear Technology/Analog Devices |
| Short Description: | IC REG CTRLR FLYBACK 16SOIC |
| More Detail: | Flyback Regulator Positive or Negative, Isolation ... |
| DataSheet: |  LT1737CS#TRPBF Datasheet/PDF |
| Quantity: | 1000 |
| 2500 +: | $ 1.96636 |
Specifications
| Frequency - Switching: | 90kHz ~ 115kHz |
| Base Part Number: | LT1737 |
| Supplier Device Package: | 16-SOIC |
| Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
| Operating Temperature: | 0°C ~ 100°C (TJ) |
| Control Features: | Enable, Soft Start |
| Serial Interfaces: | -- |
| Clock Sync: | No |
| Synchronous Rectifier: | No |
| Duty Cycle (Max): | 90% |
| Series: | -- |
| Voltage - Supply (Vcc/Vdd): | 4.1 V ~ 20 V |
| Output Phases: | 1 |
| Number of Outputs: | 1 |
| Topology: | Flyback |
| Output Configuration: | Positive or Negative, Isolation Capable |
| Function: | Step-Up/Step-Down |
| Output Type: | Transistor Driver |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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The LT1737CS#TRPBF is a high voltage precision current-mode step-up DC/DC controller. It utilizes its unique Low Input Voltage Undervoltage Lockout (UVLO) and its proprietary valley current Mode Control method in order to reduce the system BOM cost, size, and increase efficiency. This device can be used in a variety of applications such as mobile phone chargers, LCD backlighting and multimedia products. The LT1737CS#TRPBF has a wide input voltage range of 2.5 V to 28 V and is suitable for high voltage applications. It offers a high switching frequency up to 1 MHz and is capable of providing up to 15V output voltage. The device is offered in a surface-mount SOIC-8 package that can be used with a variety of power inductors. The LT1737CS#TRPBF is a DC/DC step-up converter that works by taking an input voltage and converting it to a higher output voltage. The input voltage can be anywhere from 2.5 V to 28 V while the output voltage can range from 2.5 V to 16 V. The IC features an internal error amplifier, an internal compensated oscillator, an internal current sense amplifier, and load current and error compensation circuitry. The IC requires an external power switch and an inductor for the conversion. The LT1737CS#TRPBF requires two external resistors for setting the waveform and for load current sense. Additionally, an external capacitor is required for setting the soft-start time. The LT1737CS#TRPBF utilizes current-mode control which increases the switching converter’s speed, accuracy, and stability. It also helps to prevent current limit oscillations that can occur due to changes in line voltage and load condition, as well as other external influences. The current sense amplifier allows for a precise control of the switch current, thus allowing for the optimization of the converter’s stability margin. The LT1737CS#TRPBF is designed to be used with power transistors that have an RDS(on) of 700mOhms or less in order to reduce switching losses. The ENABLE pin allows the user to turn the IC on and off in order to save power when not in use. Additionally, it has an over-temperature protection circuit to protect the IC from any potential damage caused by overheating. The LT1737CS#TRPBF is an ideal DC/DC step-up converter for high input voltage applications. Its wide input voltage range and high switching frequency makes it suitable for applications such as mobile phone chargers, LCD backlighting, multimedia, and other high voltage applications. The unique features of the IC including its low input voltage undervoltage lockout, valley current-mode control, and its high-accuracy error amplifier will help to reduce the size, cost, and improve the efficiency of the design.The specific data is subject to PDF, and the above content is for reference
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