Description
The LT3758 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. The LT3758 drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages.
The operating frequency of LT3758 can be set with an external resistor over a 100kHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 5.5V, and a low shutdown quiescent current of less than 1μA, make the LT3758 ideally suited for battery-powered systems.
The LT3758 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.
The device is available in a small 10-lead DFN (3mm × 3mm) or MSOPE package.
Packaging
DFN-10, MS-10
Typical Application
Features
- Wide Input Voltage Range: 5.5V to 100V
- Positive or Negative Output Voltage Programming with a Single Feedback Pin
- Current Mode Control Provides Excellent Transient Response
- Programmable Operating Frequency (100kHz to 1MHz) with One External Resistor
- Synchronizeable to an External Clock
- Output Overvoltage Protection
- Low Shutdown Current < 1μA
- Internal 7.2V Low Dropout Voltage Regulator
- Programmable Input Undervoltage Lockout with Hysteresis
- Programmable Soft-Start
- Small 10-Lead DFN (3mm × 3mm) and MSOPE Packages
Applications
- Automotive
- Telecom
- Industrial
Package Variations and Pricing
| Part Number |
Package |
Pins |
Temp |
Price (1-99) |
Price (1k)* |
RoHS Data |
| LT3758EDD#PBF |
DFN |
10 |
E |
$3.36 |
$2.35 |
View |
| LT3758EDD#TRPBF |
DFN |
10 |
E |
|
$2.41 |
View |
| LT3758EMSE#PBF |
MSOP |
10 |
E |
$3.36 |
$2.35 |
View |
| LT3758EMSE#TRPBF |
MSOP |
10 |
E |
|
$2.41 |
View |
| LT3758IDD#PBF |
DFN |
10 |
I |
$3.62 |
$2.53 |
View |
| LT3758IDD#TRPBF |
DFN |
10 |
I |
|
$2.59 |
View |
| LT3758IMSE#PBF |
MSOP |
10 |
I |
$3.62 |
$2.53 |
View |
| LT3758IMSE#TRPBF |
MSOP |
10 |
I |
|
$2.59 |
View |
|
|
Supplier
ShenZhen aunytor electronic co.,ltd.
FROM: Company Name: Aunytor Electronic (HK) Co.,Ltd
Contact Person: liao
Skype: Aunytor
Email: 2885745253@qq.com
