TPS563208
Synchronous Buck ConverterThe TPS563208 is a synchronous buck converter from Texas Instruments. View the full TPS563208 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
TPS563208 shares its datasheet with TPS563201, whose page lists every part number it covers.
Official TPS563208 datasheet (PDF) — the source this page was extracted from.
TPS563208 Key Specifications
| Parameter | Value |
|---|---|
| Case/Package | SOT-23-6 |
| Output Current | 3A |
| Switching Frequency | 580kHz |
| Function | Step-Down |
| Height | 1.1 mm |
| Lead Free | Lead Free |
| Length | 2.9 mm |
| Lifecycle Status | Production (Last Updated: 1 day ago) |
| Manufacturer Lifecycle Status | ACTIVE (Last Updated: 1 day ago) |
| Max Input Voltage | 17 V |
| Max Operating Temperature | 125 °C |
| Max Output Voltage | 7 V |
| Min Input Voltage | 4.5 V |
| Min Operating Temperature | -40 °C |
| Min Output Voltage | 768 mV |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Number of Outputs | 1 |
| Number of Outputs | 1 |
| Number of Pins | 6 |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Output Configuration | Positive |
| Output Configuration | Positive |
| Output Current | 3 A |
| Output Type | Adjustable |
| Output Type | Adjustable |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 |
| Packaging | MouseReel |
| Quiescent Current | 400 µA |
| RoHS | Compliant |
| Schedule B | 8542390000, 8542390000|8542390000|8542390000|8542390000|8542390000 |
| Standard Pack Qty | 3000 |
| Supplier Device Package | SOT-23-THIN |
| Switching Frequency | 580 kHz |
| Synchronous Rectifier | Yes |
| Synchronous Rectifier | Yes |
| Thickness | 870 µm |
| Topology | Buck |
| Topology | Buck |
| Input Voltage (Max) | 17V |
| Input Voltage (Min) | 4.5V |
| Output Voltage (Max) | 7V |
| Output Voltage | 0.768V |
| Width | 1.6 mm |
TPS563208 Overview
Part: TPS563201 / TPS563208 — Texas Instruments
Type: Synchronous Step-Down (Buck) Converter
Description: 4.5–17 V input, 3 A synchronous step-down converter with integrated 95 mΩ / 57 mΩ FETs, D-CAP2 control and 580 kHz switching frequency in a 6-pin SOT (DDC) package.
Operating Conditions:
- Supply voltage (VIN): 4.5–17 V
- Operating junction temperature: -40 to 125 °C
- Output voltage range: 0.76–7 V
Absolute Maximum Ratings:
- Max input voltage (VIN, EN): 19 V
- Max junction temperature: 150 °C
- Storage temperature: -55 to 150 °C
Key Specs:
- Feedback threshold voltage: 768 mV typ (749–787 mV), continuous mode, VO = 1.05 V
- High-side / low-side RDS(on): 95 mΩ / 57 mΩ typ (TA = 25 °C)
- Current limit: 3.3 / 4.2 / 5.1 A (min/typ/max), DC current, VOUT = 1.05 V, L1 = 1.5 μH
- Switching frequency: 580 kHz typ (VIN = 12 V, VO = 3.3 V, IO = 1 A)
- Non-switching supply current: 120 μA typ (TPS563201), 350 μA typ (TPS563208), EN = 5 V, VFB = 0.9 V
- Shutdown supply current: 8 μA typ, 20 μA max (EN = 0 V)
- UVLO: wake-up 3.8 V typ, shutdown 3.4 V typ
- Soft-start: 1.0 ms typ; minimum off time 220 ns typ
- Thermal shutdown: 172 °C typ, 37 °C hysteresis
- Thermal resistance RθJA: 92.6 °C/W
Features:
- D-CAP2 control scheme with fast transient response, no external compensation
- Pulse-skip (Eco-mode) operation on TPS563201; forced continuous conduction on TPS563208
- 2% feedback voltage accuracy (25 °C)
- Startup from prebiased output voltage
- Cycle-by-cycle overcurrent limit with hiccup-mode protection
- Non-latching UVP and thermal shutdown protections
- Fixed 1.0 ms soft start
Applications:
- Digital TV power supply
- High definition Blu-ray disc players
- Networking home terminal
- Digital set-top box (STB)
- Surveillance
Package:
- DDC (SOT, 6-pin), 1.6 mm × 2.9 mm
TPS563208 Features
- TPS563201 and TPS563208 3A converter integrated 95mΩ and 57mΩ FETs
- D-CAP2 ™ control scheme with fast transient response
- Input voltage range: 4.5V to 17V
- Output voltage range: 0.76V to 7V
- Pulse-skip mode (TPS563201) or continuous current mode (TPS563208)
- 580kHz switching frequency
- Low shutdown current less than 20μA
- 2% feedback voltage accuracy (25°C)
- Startup from prebiased output voltage
- Cycle-by-cycle overcurrent limit
- Hiccup-mode overcurrent protection
- Non-latch UVP and TSD protections
- Fixed soft start: 1.0ms
- Create a custom design using the TPS56320x with the WEBENCH ® Power Designer
TPS563208 Applications
- Digital TV power supply
- High definition Blu-ray ™ disc players
- Networking home terminal
- Digital Set Top Box (STB)
- Surveillance
TPS563208 Pin Configuration
Figure 4-1. DDC Package 6-Pin SOT Top View
Table 4-1. Pin Functions
| PIN | PIN | TYPE (1) | |
|---|---|---|---|
| NAME | NO. | TYPE (1) | DESCRIPTION |
| GND | 1 | - | Ground pin Source terminal of low-side power NFET as well as the ground terminal for controller circuit. Connect sensitive VFB to this GND at a single point. |
| SW | 2 | O | Switch node connection between high-side NFET and low-side NFET. |
| VIN | 3 | I | Input voltage supply pin. The drain terminal of high-side power NFET. |
| VFB | 4 | I | Converter feedback input. Connect to output voltage with feedback resistor divider. |
| EN | 5 | I | Enable input control. Active high and must be pulled up to enable the device. |
| VBST | 6 | O | Supply input for the high-side NFET gate drive circuit. Connect 0.1 μF capacitor between VBST and SW pins. |
(1) I = input, O = output
TPS563208 Electrical Characteristics
TJ = -40°C to 125°C, VIN = 12 V (unless otherwise noted)
| PARAMETER | TEST CONDITIONS | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|---|
| SUPPLY CURRENT | 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 = 0.9 V | TPS563201 | 120 | 200 | μA | |
| I VIN | V IN current, EN = 5 V, V FB = 0.9 V | TPS563208 | 350 | 500 | μA | ||
| I VINSDN | Shutdown supply current | V IN current, EN = 0 V | 8 | 20 | μA | ||
| LOGIC THRESHOLD | 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 = 1.5 V | 600 | 1500 | 2400 | kΩ | |
| I EN | EN pulldown current | V EN = 1.5 V | 1 | μA | |||
| 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 FB VOLTAGE AND DISCHARGE RESISTANCE |
| V FBTH | V FB threshold voltage (1) | V O = 1.05 V, I O = 10 mA, Eco-mode operation | 774 | mV | |||
| V FB threshold voltage | V O = 1.05 V, continuous mode operation | 749 | 768 | 787 | mV | ||
| I VFB | V FB input current | V FB = 0.8 V | 0 | ±0.1 | μA | ||
| MOSFET | MOSFET | MOSFET | MOSFET | MOSFET | MOSFET | MOSFET | MOSFET |
| R DS(on)h | High-side switch resistance | T A = 25°C, V BST - SW = 5 V | 95 | mΩ | |||
| R DS(on)l | Low-side switch resistance | T A = 25°C | 57 | mΩ | |||
| CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT |
| I ocl | Current limit | DC current, V OUT = 1.05 V, L 1 = 1.5 μH | 3.3 | 4.2 | 5.1 | A | |
| THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN |
| T SDN | Thermal shutdown threshold (1) | Shutdown temperature Hysteresis | 172 37 | °C | |||
| 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 | ON-TIME TIMER CONTROL |
| t OFF(MIN) | Minimum off time | V FB = 0.5 V | 220 | 310 | ns | ||
| SOFT START | SOFT START | SOFT START | SOFT START | SOFT START | SOFT START | SOFT START | SOFT START |
| Tss | Soft-start time | Internal soft-start time | 1.0 | ms | |||
| FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY | FREQUENCY |
| F sw | Switching frequency | V IN = 12 V, V O = 3.3 V, I O = 1 A | 580 | 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 | OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION |
| V UVP | Output UVP threshold | Hiccup detect (H > L) | 65% | ||||
| T HICCUP_WAIT | Hiccup on time | 1.2 | ms | ||||
| T HICCUP_RE | Hiccup time before restart | 10 | ms | ||||
| UVLO | UVLO | UVLO Wake up VIN voltage | UVLO | UVLO | UVLO 3.8 | UVLO 4.3 | UVLO |
| UVLO | UVLO threshold | Shutdown VIN voltage Hysteresis VIN voltage | 3.3 | 3.4 0.4 | V |
TPS563208 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 | V |
| Input voltage | VFB | -0.3 | 6 | 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 |
TPS563208 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 | 4.5 | 17 | V | |
| VBST | -0.1 | 23 | V | |||
| VBST (10 ns transient) | -0.1 | 26 | V | |||
| VBST (vs SW) | -0.1 | 5.5 | V | |||
| V I | Input voltage range | EN | -0.1 | 17 | ||
| V I | VFB | -0.1 | 5.5 | |||
| V I | SW | -1.8 | 17 | |||
| V I | SW (10 ns transient) | -3.5 | 20 | |||
| T J | Operating junction temperature | Operating junction temperature | -40 | 125 | °C |
TPS563208 Thermal Information
| THERMAL METRIC (1) | THERMAL METRIC (1) | TPS56320x DDC (SOT) 6 PINS | UNIT |
|---|---|---|---|
| R θJA | Junction-to-ambient thermal resistance | 92.6 | °C/W |
| R θJC(top) | Junction-to-case (top) thermal resistance | 48.5 | °C/W |
| R θJB | Junction-to-board thermal resistance | 15.5 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 2.5 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 15.5 | °C/W |
TPS563208 Typical Application
The devices are typical step-down DC-DC converters. The devices are typically used to convert a higher dc voltage to a lower dc voltage with a maximum available output current of 3 A. The following design procedure can be used to select component values for the TPS563201 and TPS563208. Alternately, the WEBENCH software can 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.
TPS563208 Package Information
SOT-23 - 1.1 max height
SMALL OUTLINE TRANSISTOR
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 |
|---|---|---|
| TPS563201 | Texas Instruments | SOT-23-THIN-6 |
| TPS563201DDCR | Texas Instruments | SOT-23-6 Thin, TSOT-23-6 |
| TPS563201DDCT | Texas Instruments | SOT-23-6 Thin, TSOT-23-6 |
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)
Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.
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