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 notes | D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- | Jan. 02, 2013 | |
| User guides | 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
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