product properties：
| TYPE | DESCRIBE |
| category | Integrated Circuit (IC) PMIC - Voltage Regulators - DC DC Switching Regulators |
| manufacturer | Texas Instruments |
| series | D-CAP2™ |
| Package | Tape and Reel (TR) Shear Band (CT) Digi-Reel® Custom Reel |
| product status | in stock |
| Function | Buck |
| output configuration | just |
| topology | Buck |
| output type | adjustable |
| Number of outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output (min/fixed) | 0.765V |
| Voltage - Output (Maximum) | 5.5V |
| Current - Output | 6A |
| Frequency - switch | 650kHz |
| Synchronous Rectifier | Yes |
| Operating temperature | -40°C ~ 85°C (TA) |
| installation type | Surface Mount Type |
| Package/Enclosure | 8-PowerSOIC (0.154", 3.90mm wide) |
| Supplier Device Packaging | 8-SO-PowerPad |
| Basic product number | TPS54627 |
Environment and Export Classification：
| ATTRIBUTES | DESCRIBE |
| RoHS status | Compliant with ROHS3 specification |
| Moisture Sensitivity Level (MSL) | 2 (1 year) |
| REACH status | Non-REACH products |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS54627 4.5-V to 18-V Input, 6-A Synchronous Step-Down Converter
1
1 Features
1
•
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 5.5 V
•
Highly Efficient Integrated FETs Optimized for
Lower Duty-Cycle Applications
–
36 mΩ (High-Side) and 28 mΩ (Low-Side)
•
High Efficiency, Less Than 10 μA at Shutdown
•
High Initial Bandgap-Reference Accuracy
•
Adjustable Soft Start
•
Prebiased Soft Start
•
650-kHz Switching Frequency
•
Cycle-by-Cycle Overcurrent Limit
2 Applications
•
Wide Range of Applications for Low-Voltage
System
–
Digital-TV Power Supply
–
High-Definition Blu-ray Disc™ Players
–
Networking Home Terminals
–
Digital Set-Top Boxes (STB)
3 Description
The TPS54627 device is an adaptive on-time D
CAP2
mode
synchronous-buck
converter.
The
TPS54627 enables system designers to complete the
suite of various end-equipment power-bus regulators
with a cost-effective, low-component count, low
standby current solution.
The main control loop for the TPS54627 uses the D
CAP2 mode control that provides a fast transient
response
with
no
external
compensation
components. The TPS54627 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 5.5 V. The device also features an
adjustable soft-start time. The TPS54627 is available
in the 8-pin SO PowerPAD package, and designed to
operate from –40°C to 85°C.
