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LT3507IUHF
IC REG QD BUCK/LINEAR 38QFN
- Manufacturer
- Mfr. Part #LT3507IUHF
- Package
- Datasheet
- In Stock5108
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Specifications
| Part Status | Obsolete |
| Topology | Step-Down (Buck) (3), Linear (LDO) (1) |
| Number of Outputs | 4 |
| Frequency - Switching | 900kHz ~ 1.1MHz |
| Voltage/Current - Output 1 | 0.8V ~ 32.4V, 2.4A |
| Voltage/Current - Output 2 | 0.8V ~ 32.4V, 1.5A |
| Voltage/Current - Output 3 | 0.8V ~ 32.4V, 1.5A |
| w/LED Driver | No |
| w/Supervisor | No |
| w/Sequencer | Yes |
| Voltage - Supply | 4V ~ 36V |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 38-WFQFN Exposed Pad |
| Supplier Device Package | 38-QFN (5x7) |
| Base Product Number | LT3507 |
Overview
Description
Key features of the LT3507IUHF include high efficiency, typically exceeding 90%, and a wide switching frequency range from 250kHz to 2.5MHz, which can be synchronized to an external clock. This flexibility allows designers to optimize the balance between efficiency and component size. The device also includes features like soft-start, cycle-by-cycle current limit, and thermal shutdown to enhance reliability and ease of use.
Packaged in a thermally enhanced 5mm x 7mm QFN, the LT3507IUHF is suitable for compact designs where space is a premium. Overall, the LT3507IUHF offers a robust solution for multi-output power supply needs in power-sensitive and space-constrained applications.
Features
The regulator operates at a fixed frequency of 2.25MHz, which helps to reduce external component size and improve transient response. The LT3507IUHF also features a low quiescent current and high efficiency across a broad load range, which is beneficial for battery-powered devices.
Key protection features include overtemperature protection, cycle-by-cycle current limit, and soft-start capability to prevent inrush current at startup. The device is housed in a thermally enhanced 38-lead QFN package, providing efficient heat dissipation.
Overall, the LT3507IUHF is ideal for applications requiring multiple regulated outputs with high efficiency and compact form factor.
Package
Pinout
Pin Count: The LT3507IUHF has a total of 38 pins.
Functions:
1. Input and Output Pins: It has input, output, and feedback pins for each of the three channels, allowing each channel to be configured independently.
2. Switching Pins: Integrated switches control the conversion process.
3. Feedback Pins: Used to set the output voltage and for loop compensation.
4. Control Pins: Enable, sync, and soft-start pins for each channel provide control over the regulator's operation and sequencing.
5. Ground and Power Pins: Dedicated pins for ground and power connections ensure proper operation and heat dissipation.
The LT3507IUHF is characterized by its efficiency, compact package, and ability to manage multiple outputs, making it ideal for complex power management in various electronic devices.
Manufacturer
Application
Equivalent
1. Texas Instruments: TPS54340, LM3150
2. Analog Devices: ADP1850
3. ON Semiconductor: NCP81253
4. STMicroelectronics: L6986
When selecting an equivalent, ensure to match key specifications such as input voltage, output current, switching frequency, and package type to ensure compatibility with your application.
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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