Allicdata Part #: | LP3907SQX-TJXIP/NOPB-ND |
Manufacturer Part#: |
LP3907SQX-TJXIP/NOPB |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG QD BUCK/LINEAR SYNC 24QFN |
More Detail: | Linear And Switching Voltage Regulator IC 4 Output... |
DataSheet: | LP3907SQX-TJXIP/NOPB Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Obsolete |
Topology: | Step-Down (Buck) Synchronous (2), Linear (LDO) (2) |
Function: | Any Function |
Number of Outputs: | 4 |
Frequency - Switching: | 2.1MHz |
Voltage/Current - Output 1: | 1.2V, 1A |
Voltage/Current - Output 2: | 3.3V, 600mA |
Voltage/Current - Output 3: | 1.8V, 300mA |
w/LED Driver: | No |
w/Supervisor: | No |
w/Sequencer: | Yes |
Voltage - Supply: | 2.8 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 24-WFQFN Exposed Pad |
Supplier Device Package: | 24-WQFN (4x4) |
Base Part Number: | LP3907 |
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LP3907SQX-TJXIP/NOPB is an integrated voltage regulator in the linear switching class of the Power Management IC (PMIC) family. This device is designed to provide a stable voltage output in order to ensure smooth device operation and maximized lifetime. The circuit block diagram of this linear and switching regulator is shown in Figure 1. The main function of this regulator is to adjust the output voltage to a regulated level, and by using the input voltage thresholds and maximum current limit, controlling the output voltage is simpler and more efficient throughput the switching process.
The LP3907SQX-TJXIP/NOPB application field and working principle can be divided into two parts:
Application Field: The LP3907SQX-TJXIP/NOPB is designed to be used in various linear and switching applications, such as high and low voltage power supplies, as well as in communication and communication-related applications that require a stable level of output power in order to guarantee a reliable and stable connection. This variant of the LP3907SQX-TJXIP/NOPB regulator is specifically designed to be employed in PDAs, Digital Still Cameras, Notebooks and portable devices.
Working Principle: The LP3907SQX-TJXIP/NOPB is a linear/switching regulator that helps to maintain a stable voltage output. The components contained within its circuit block diagram, like the voltage divider, linear regulator and switch, work together in a two-point mode system to regulate the output voltage. By using the LP3907SQX-TJXIP/NOPB, the two-point mode system can adjust the output voltage from a maximum of 15V to zero volts. The circuit also includes an internal fault monitor, protection against over-current, over-voltage and under-voltage using active low open drain outputs. The active low open drain outputs, when active, inform the user that the circuit is in an over/undervoltage condition, with the help of active-low reset logic. By monitoring various parameters, such as the output voltage, current limit, and input voltage settings, the LP3907SQX-TJXIP/NOPB regulator optimizes overall system performance.
LP3907SQX-TJXIP/NOPB device is further supported by its shutdown mode feature, which helps to reduce power consumption in quiescent state. The device includes an enable pin (EN) when enabled the device starts switching. The enable pin is connected to Vcc in the power-on state, thereby allowing the internal voltage regulator to maintain the output voltage while in shutdown mode. The over-voltage monitor also works in shutdown mode in order to help prevent overvoltage conditions.
The LP3907SQX-TJXIP/NOPB also has an environmental protection feature which helps protect the device from being damaged due to high amounts of moisture, dust, or other environmental contaminants. All incoming and outgoing power levels are covered in order to prevent any faulty signals from entering the device.
Overall, the LP3907SQX-TJXIP/NOPB is an ideal IC for linear and switching applications, offering adjustable output voltage, current limit and input voltage settings, and low power consumption in quiescent state. It also provides external fault monitor and protection against over-current, over-voltage and under-voltage using active-low open drain outputs for further assurance and reliability.
The specific data is subject to PDF, and the above content is for reference
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