| Brand | Texas Instruments |
| Date Code | 2128 |
| Packing | Tube |
| Package | SO-PowerPad-8 |
| Minimum Packing | 75pcs |
Automotive, 4.5V to 42V Input, 3.5A Step-Down Converter With Eco-Mode™
Features：
Quality information
|
RatingAutomotive |
|
RoHSYes |
|
REACHYes |
|
Lead finish / Ball materialNiPdAu | NiPdAuAg |
|
MSL rating / Peak reflowLevel-2-260C-1 YEAR |
Packaging information
|
Package | PinsHSOIC (DDA) | 8 |
|
Operating temperature range (°C)-40 to 125 |
|
Package qty | Carrier75 | TUBE |
Features for the TPS54340B-Q1
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
Device HBM ESD Classification Level H1C
Device CDM ESD Classification Level C3B
High Efficiency at Light Loads With Pulse Skipping Eco-mode™
92-mΩ High-Side MOSFET
146-µA Operating Quiescent Current and 2-µA Shutdown Current
100-kHz to 2.5-MHz Adjustable Switching Frequency
Synchronizes to External Clock
Low Dropout at Light Loads With Integrated BOOT Recharge FET
Adjustable UVLO Voltage and Hysteresis
0.8 V 1% Internal Voltage Reference
8-Pin HSOP With PowerPAD™ Package
–40°C to 150°C TJ Operating Range
Supported by WEBENCH® Software Tool
Description for the TPS54340B-Q1
The TPS54340B-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µ when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.
A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54340B-Q1 device is available in an 8-pin thermally-enhanced HSOP PowerPAD package.
