4.5V to 18V Input, 3A Synchronous Step-Down Converter with D-CAP2 Mode
Product details
Parameters
Package | Pins | Size
Features
- D-CAP2™ Mode Enables Fast Transient Response
- Low Output Ripple and Allows Ceramic Output Capacitor
- Wide VIN Input Voltage Range: 4.5 V to 18 V
- Output Voltage Range: 0.76 V to 7.0 V
- Highly Efficient Integrated FETs Optimized
for Lower Duty Cycle Applications
– 100 mΩ (High Side) and 74 mΩ (Low Side) - High Efficiency, Less Than 10 µA at Shutdown
- High Initial Bandgap Reference Accuracy
- Adjustable Soft Start
- Pre-Biased Soft Start
- 650-kHz Switching Frequency (fSW)
- Cycle By Cycle Over Current Limit
Description
The TPS54329 is an adaptive on-time D-CAP2 mode synchronous buck converter. TheTPS54329 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54329 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54329 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54329 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
Same functionality and pinout but is not an equivalent to the compared device:
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | 4.5V to 18V Input, 3A Synchronous Step-Down Converter datasheet (Rev. A) | Mar. 23, 2012 |
| Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
| Application note | D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- | Jan. 02, 2013 | |
| User guide | TPS54329EVM-056, 3-A, SWIFT™ Regulator Evaluation Module | Oct. 21, 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Vin = 4.5V to 18V
- Iout = 3A
- Vout = 1.05
- D-CAP2 Control
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SO PowerPAD (DDA) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.