TPS54427DDAR
Voltage Regulators - DC DC Switching Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 3.88 V |
| Output Current | 4 A |
| Function | Step-down type |
| Working Voltage V | 11.25 V |
| Switching Freq Hz | 650 kHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0.001 A |
| Switch tube (built-in/external) | Built-in |
| Operating Temp | -40°C ~ +85°C @(TA) |
| Features | Adjustable soft-start;Cycle-by-cycle current limiting;Overcurrent Protection |
| Topology | Buck |
| Package / Case | SOP-8 |
Product Introduction
The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 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 TPS54427 uses the DCAP2™mode control which provides a fast transient response with no external compensation components.
The TPS54427 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 TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from -40°C to 85°C.
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
- 70 mΩ (High Side) and 53 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
Applications
- - Wide Range of Applications for Low Voltage System - Digital TV Power Supply - High Definition Blu-ray Disc Players - Networking Home Terminal - Digital Set Top Box (STB)
Datasheet
Alternative Parts
Common TPS54427DDAR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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