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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Output 1 | 1 V / 8 A |
| IC revision | 1.0 |
Description
The SCT2280 is a high efficiency synchronous stepdown DC-DC converter with 4.5V-18V input voltage range and adjustable output voltage down to 0.6V. It offers a small saving 2mmx3mm QFN package that supplies continuous 8A output current. The device fully integrates high-side and low-side power MOSFETs with 25mΩ/12mΩ on-resistance to minimize the conduction loss.The SCT2280 adopts a Constant On-Time (COT) control to provide fast transient response and easy loop stabilization. The switching clock frequency can be selected from 400KHz, 800KHz and 1.2MHz for optimization of the filter size and output voltage ripple.The SCT2280 has the MODE pin to select Pulse Frequency Modulation (PFM) operation mode to achieve the light load power save, or Ultrasonic Mode (USM) to keep the switching frequency above audible frequency areas during light-load or no-load conditions.The converter requires a minimum number of external components and is available in a QFN- 12 (2mmx3mm) package.
Features
- Wide 4.5V-18V Input Voltage Range
- 0.6V-7V Output Voltage Range
- 8A Continuous Output Current
- Integrated 25mΩ/12mΩ Rdson of HS/LS Power MOSFETs
- Fixed 1ms Soft-start Time
- Selectable 400KHz, 800KHz and 1.2MHzSwitching Frequencies
- Selectable PWM, PFM and USM OperationModes
- Cycle-by-Cycle Current Limiting
- Output Over-Voltage Protection
- Over-Temperature Protection
- Available in a QFN 12-leads 2mmx3mm Package
Typical applications
- IPCs, Factory Automation, PLC, Test
- Server, Cloud-Computing, Storage, Telecom & Networking, Small-cell Base Stations
- High End DTV, Set-top Box, XDSL Modem, Personal Video Recorders
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206020 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 100 nF | ±10% | 10 | 0603 | -55 °C up to +125 °C | 5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206071 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012106022 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±20% | 25 | 0603 | -55 °C up to +85 °C | 10 | 0.5 GΩ | X5R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012109010 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | 22 µF | ±20% | 16 | 1210 | -55 °C up to +85 °C | 10 | 0.02 GΩ | X5R Class II | 3.2 | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
| 885012109014 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 22 µF | ±20% | 25 | 1210 | -55 °C up to +85 °C | 10 | 0.005 GΩ | X5R Class II | 3.2 | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
 | 61300311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 7.62 | – | – | – | – | – | – | – | – | THT | 3 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 744393440056 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-XHMI SMT Power Inductor | – | – | – | 6030 | -40 °C up to +125 °C | – | – | – | 6.65 | 6.45 | – | 0.56 | 22.75 | 30.8 | 2.9 | 3.19 | 77 | SMT | 2 | – | 3 | – | – | 16 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206020 | SPEC | |
| 885012206071 | SPEC | |
| 885012106022 | SPEC | |
| 885012109010 | SPEC | |
| 885012109014 | SPEC | |
| 61300311121 | SPEC | – |
| 744393440056 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|