TPS56428DDAR
Switching Voltage Regulators 4.5V-18V Input 4A Sync SD Cnvtr
Inventory:8,424
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Part Number : TPS56428DDAR
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Package/Case : HSOIC-8
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Brands : TI
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Components Categories : Voltage Regulators - DC DC Switching Regulators
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Datesheet : TPS56428DDAR DataSheet (PDF)
Overview of TPS56428DDAR
The TPS56428 is a D-CAP2 mode synchronous buck converter which is optimized for various power bus regulation needs with a cost effective, low component count, low standby current solution.
The D-CAP2 mode control provides a fast transient response with no external compensation components. This adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-mode operation at light loads. Advanced Eco-mode™ maintains higher efficiency during lighter load conditions than traditional skip mode.
The TPS56428 also has a proprietary circuit 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 and its output voltage can be programmed between 0.6V and 7.0V. The device also features a fixed 1-ms soft start and a power-good output.
The TPS56428 is available in 8-pin SOIC-8 and 14-pin QFN packages designed to operate over the ambient temperature range of –40°C to 85°C.
Key Features
- D-CAP2™ Mode at 650kHz Switching for Fast
Transient Response, Ceramic Capacitor Support - VIN Input Voltage Range: 4.5 V to 18 V
- Output Voltage Range: 0.6 V to 7.0 V
- Advanced Eco-mode for High Light Load
Efficiency - Integrated FETs Optimized for Lower Duty Cycle
– 68 mΩ (High Side) and 37 mΩ (Low Side) - Shutdown Current Less Than 10 µA
- 1% Initial Reference Voltage Accuracy
- Soft Start with Pre-Bias Output Support
- Cycle By Cycle Over Current Limit
- Power Good Output
- Fixed Soft Start : 1.0ms
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Vin (min) (V) | 4.5 | Vin (max) (V) | 18 |
| Vout (min) (V) | 0.6 | Vout (max) (V) | 5.5 |
| Iout (max) (A) | 4 | Iq (typ) (mA) | 0.25 |
| Switching frequency (min) (kHz) | 650 | Switching frequency (max) (kHz) | 650 |
| Features | Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification | Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog | Regulated outputs (#) | 1 |
| Control mode | D-CAP2 | Duty cycle (max) (%) | 65 |
| Type | Converter |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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