TPS565208DDCT
Synchronous Buck ConverterThe TPS565208DDCT is a synchronous buck converter from Texas Instruments. View the full TPS565208DDCT datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
TPS565208DDCT shares its datasheet with TPS565208, whose page lists every part number it covers.
Official TPS565208DDCT datasheet (PDF) — the source this page was extracted from.
TPS565208DDCT Key Specifications
| Parameter | Value |
|---|---|
| Control Mode | D-CAP2 |
| Soft Start Time | 1.0 ms |
| Shutdown Current | <1 µA |
| Package Body Size | 1.60 mm x 2.90 mm |
| Input Voltage Range | 4.5V to 17V |
| Switching Frequency | 500 kHz |
| Low-Side FET Rds(On) | 16 mΩ |
| Output Voltage Range | 0.76V to 7V |
| High-Side FET Rds(On) | 31 mΩ |
| Maximum Output Current | 5A |
| Feedback Voltage Accuracy | 1% |
| Junction Temperature Range | -40°C to 125°C |
TPS565208DDCT Overview
Part: TPS565208 — Texas Instruments
Type: Synchronous Step-Down Voltage Regulator
Description: 4.5 V to 17 V input, 5 A synchronous step-down converter with integrated FETs and D-CAP2™ mode control.
Operating Conditions:
- Supply voltage: 4.5 V to 17 V
- Operating temperature: -40 °C to 125 °C (junction temperature)
- Output voltage range: 0.76 V to 7 V
Absolute Maximum Ratings:
- Max supply voltage: 19 V (VIN, EN)
- Max junction/storage temperature: 150 °C
Key Specs:
- High-side switch on-resistance: 31 mΩ (TA = 25 °C, VBST - VSW = 5.5 V)
- Low-side switch on-resistance: 16 mΩ (TA = 25 °C)
- Current limit: 5.3 A min, 6.7 A typ, 8 A max
- Switching frequency: 500 kHz typ (VIN = 12 V, VOUT = 5 V, CCM mode)
- Feedback threshold voltage: 753 mV min, 760 mV typ, 767 mV max
- Non-switching supply current: 590 μA typ, 780 μA max (EN = 5 V, VFB = 1 V)
- Shutdown supply current: 0.8 μA typ, 5 μA max (EN = 0 V)
- Internal soft-start time: 1.0 ms typ
Features:
- Integrated 31-mΩ and 16-mΩ FETs
- D-CAP2™ mode control with fast transient response
- Cycle-by-cycle current limit with hiccup-mode overcurrent protection
- Non-latch undervoltage protection (UVP) and thermal shutdown (TSD)
- Startup from pre-biased output voltage
- Fixed 1.0-ms internal soft start
Applications:
- Digital TV power supply
- High-definition Blu-ray™ disc players
- Networking home terminal
- Digital set top box (STB)
- Surveillance
Package:
- 6-pin SOT (DDC) (1.60 mm × 2.90 mm)
TPS565208DDCT Features
- 1 · 5-A Maximum Output Current
- Integrated 31-m Ω and 16-m Ω FETs
- D-CAP2™ Mode Control with Fast Transient Response
- Input Voltage Range: 4.5 V to 17 V
- Output Voltage Range: 0.76 V to 7 V
- Continuous Current Mode
- 500-kHz Switching Frequency
- Low Shutdown Current of Less than 1 μA
- 1% Feedback Voltage Accuracy
- Startup from Pre-biased Output Voltage
- Cycle-by-Cycle Current Limit
- Hiccup-mode Overcurrent Protection
- Non-Latch UVP and TSD Protections
- Fixed Soft Start: 1.0 ms
- Create a Custom Design Using the TPS565208 With the WEBENCH ® Power Designer
TPS565208DDCT Applications
- Digital TV Power Supply
- High Definition Blu-ray™ Disc Players
- Networking Home Terminal
- Digital Set Top Box (STB)
- Surveillance
TPS565208DDCT Pin Configuration
TPS565208DDCT Electrical Characteristics
TJ = -40°C to 125°C, VIN = 12 V (unless otherwise noted)
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY CURRENT | SUPPLY CURRENT | SUPPLY CURRENT | SUPPLY CURRENT | SUPPLY CURRENT | SUPPLY CURRENT | SUPPLY CURRENT |
| I VIN | Operating - non-switching supply current | V IN current, EN = 5 V, V FB = 1 V | 590 | 780 | μA | |
| I VINSDN | Shutdown supply current | V IN current, EN = 0 V | 0.8 | 5 | μA | |
| LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD |
| V ENH | EN high-level input voltage | 1.6 | V | |||
| V ENL | EN low-level input voltage | 0.8 | V | |||
| R EN | EN pin resistance to GND | V EN = 12 V | 120 | 245 | 400 | k Ω |
| V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE | V FB VOLTAGE AND DISCHARGE RESISTANCE |
| V FBTH | V FB threshold voltage | 753 | 760 | 767 | mV | |
| I VFB | V FB input current | T A = 25°C, V FB = 0.8 V | 0 | ±0.1 | μA | |
| MOSFET | MOSFET | MOSFET | MOSFET | MOSFET | MOSFET | MOSFET |
| R DS(on)h | High-side switch resistance | T A = 25°C, V BST - V SW = 5.5 V | 31 | m Ω | ||
| R DS(on)l | Low-side switch resistance | T A = 25°C | 16 | m Ω | ||
| CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT |
| I OCL | Current limit | 5.3 | 6.7 | 8 | A | |
| THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN |
| T | Thermal shutdown (1) | Shutdown temperature | 172 | °C | ||
| SDN | threshold | Hysteresis | 38 | |||
| ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL | ON-TIME TIMER CONTROL |
| t OFF(MIN) | Minimum off time | V FB = 0.61 V | 236 | 280 | ns | |
| SOFT START | SOFT START | SOFT START | SOFT START | SOFT START | SOFT START | SOFT START |
| t SS | Soft-start time | Internal soft-start time | 1.0 | ms | ||
| FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY |
| F SW | Switching frequency | V IN = 12 V, V OUT = 5 V, CCM mode | 500 | kHz | ||
| OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION |
| V UVP | Output UVP threshold | Hiccup detect (H > L) | 65 | % | ||
| T HICCUP_WAIT | Hiccup on time | 1.8 | ms | |||
| T HICCUP_RE | Hiccup time before restart | 14.9 | ms | |||
| UVLO | UVLO | UVLO Wake up VIN voltage | UVLO | UVLO 4.0 | UVLO 4.3 | UVLO |
| UVLO | UVLO threshold | Shutdown VIN voltage | 3.3 | 3.6 | V | |
| UVLO | Hysteresis VIN voltage (1) | 0.4 |
TPS565208DDCT Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input voltage | VIN, EN | -0.3 | 19 | V |
| Input voltage | VBST | -0.3 | 25 | V |
| Input voltage | VBST (10 ns transient) | -0.3 | 27 | V |
| Input voltage | VBST (vs SW) | -0.3 | 6.5 | V |
| Input voltage | VFB | -0.3 | 6.5 | V |
| Input voltage | SW | -2 | 19 | V |
| Input voltage | SW (10 ns transient) | -3.5 | 21 | V |
| Operating junction temperature, T J | Operating junction temperature, T J | -40 | 150 | °C |
| Storage temperature, T stg | Storage temperature, T stg | -55 | 150 | °C |
TPS565208DDCT Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| V IN | Supply input voltage range | Supply input voltage range VBST VBST (10 ns transient) VBST (vs SW) | 4.5 -0.1 -0.1 -0.1 | 17 23 26 6.0 | V | |
| V I | Input voltage range | EN VFB SW SW (10 ns transient) | -0.1 -0.1 -1.8 -3.5 | 17 5.5 17 20 | V | |
| T J | Operating junction temperature | Operating junction temperature | -40 | 125 | °C |
TPS565208DDCT Thermal Information
| THERMAL METRIC (1) | THERMAL METRIC (1) | TPS565208 DDC (SOT) 6 PINS | UNIT |
|---|---|---|---|
| R θ JA | Junction-to-ambient thermal resistance | 95.9 | °C/W |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 35.6 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 16.4 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 1.4 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 16.4 | °C/W |
TPS565208DDCT Typical Application
The device is a typical step-down DC-DC converter for converting a higher dc voltage to a lower dc voltage with a maximum available output current of 5 A. The following design procedure can be used to select component values for the TPS565208. Alternately, the WEBENCH ® software may be used to generate a complete design. The WEBENCH software uses an iterative design procedure and accesses a comprehensive database of components when generating a design. This section presents a simplified discussion of the design process.
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| TPS565208 | Texas Instruments | DDC (6) |
| TPS565208DDCR | Texas Instruments | SOT-23-6 THIN |
| TPS565208DDCR.A | Texas Instruments | SOT-23 |
| TPS565208DDCT.A | Texas Instruments | SOT-23-6 THIN |
Other Switching Regulators (Buck)
- TPS54302 – Texas Instruments, Synchronous Step-Down Converter
- MAX20730 – Analog Devices, Synchronous Switching Regulator
- TLV62568 – Texas Instruments, Synchronous Buck Converter
- LM2596 – Texas Instruments, Step-Down Voltage Regulator
- TPS562200 – Texas Instruments, Synchronous Buck Converter
- AP63203WU – Diodes Incorporated, Synchronous Buck Converter
- TPS54202 – Texas Instruments, Synchronous Buck Converter
- AP63357DV-7 – Diodes Incorporated, Synchronous Buck Converter
All Switching Regulators (Buck) datasheetsAll Texas Instruments datasheets (2,418)
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