TPS562200DDCT
Synchronous Buck ConverterThe TPS562200DDCT is a synchronous buck converter from Texas Instruments. View the full TPS562200DDCT datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Switching Regulators (Buck)Overview
Part: TPS562200, TPS563200 from Texas Instruments
Type: Synchronous Step-down Voltage Regulator
Description: The TPS562200 and TPS563200 are simple, easy-to-use 2-A and 3-A synchronous step-down (buck) converters with an input voltage range of 4.5 V to 17 V, integrated FETs, and D-CAP2™ control topology.
Operating Conditions:
- Supply voltage: 4.5 V to 17 V
- Operating temperature: -40°C to 85°C (ambient)
- Output voltage range: 0.76 V to 7 V
- Switching frequency: 650 kHz
Absolute Maximum Ratings:
- Max supply voltage (VIN, EN): 19 V
- Max continuous current: 3 A (for TPS563200)
- Max junction temperature: 150°C
Key Specs:
- TPS562200 integrated FETs: 122 mΩ (high-side), 72 mΩ (low-side)
- TPS563200 integrated FETs: 68 mΩ (high-side), 39 mΩ (low-side)
- Feedback voltage accuracy: 1% (at 25°C)
- Switching frequency: 650 kHz
- Low shutdown current: less than 10 μA
- Fixed soft start: 1 ms
- Output voltage range: 0.76 V to 7 V
- Overcurrent limit: Cycle-by-cycle
Features:
- D-CAP2™ control topology for fast transient response
- Advanced Eco-mode pulse-skip for high efficiency at light loads
- Start-up from pre-biased output voltage
- Cycle-by-cycle overcurrent limit
- Hiccup-mode undervoltage protection
- Non-latch OVP, UVLO and TSD protections
Applications:
- Digital TV power supply
- High definition Blu-ray Disc™ players
- Networking home terminal
- Digital Set Top Box (STB)
Package:
- DRL (SOT-236, 6)
Features
- TPS562200 - 2-A converter with integrated 122-mΩ and 72-mΩ FETs
- TPS563200 - 3-A converter with integrated 68-mΩ and 39-mΩ FETs
- D-CAP2 ™ control topology for fast transient response
- Input voltage range: 4.5 V to 17 V
- Output voltage range: 0.76 V to 7 V
- Switching frequency: 650 kHz
- Advanced Eco-mode pulse-skip
- Low shutdown current less than 10 μA
- 1% feedback voltage accuracy (25°C)
- Start-up from pre-biased output voltage
- Cycle-by-cycle overcurrent limit
- Hiccup-mode undervoltage protection
- Non-latch OVP, UVLO and TSD protections
- Fixed soft start: 1 ms
- Use TPS563252 for improved efficiency and higher frequency in a smaller package
- Create a Custom Design with WEBENCH ® Tools
Applications
- Digital TV power supply
- High definition Blu-ray Disc ™ players
- Networking home terminal
- Digital Set Top Box (STB)
Simplified Schematic
Pin Configuration
Figure 5-1. DDC Package 6 Pin (SOT) Top View
Table 5-1. Pin Functions
| PIN | PIN | DESCRIPTION |
|---|---|---|
| NAME | NUMBER | |
| 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 | Switch node connection between high-side NFET and low-side NFET. |
| VIN | 3 | Input voltage supply pin. The drain terminal of high-side power NFET. |
| VFB | 4 | Converter feedback input. Connect to output voltage with feedback resistor divider. |
| EN | 5 | Enable input control. Active high and must be pulled up to enable the device. |
| VBST | 6 | Supply input for the high-side NFET gate drive circuit. Connect a 0.1μF capacitor between VBST and SW pins. |
Table 5-1. Pin Functions
Electrical Characteristics
TJ = -40°C to 150°C, VIN = 12V (unless otherwise noted)
| PARAMETER | 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, T A = 25°C, EN = 5V, V FB = 0.8 V | TPS562200 | 230 | 330 | μA | |
| V IN current, T A = 25°C, EN = 5V, V FB = 0.8 V | TPS563200 | 190 | 290 | μA | |||
| I (VINSDN) | Shutdown supply current | V IN current, T A = 25°C, EN = 0 V | 3 | 10 | μA | ||
| LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD | LOGIC THRESHOLD |
| V EN(H) | EN high-level input voltage | EN | 1.6 | V | |||
| V EN(L) | EN low-level input voltage | EN | 0.6 | V | |||
| R EN | EN pin resistance to GND | V EN = 12 V | 225 | 450 | 900 | kΩ | |
| 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 FB(TH) | V FB threshold voltage | T A = 25°C, V O = 1.05 V, I O = 10 mA, Eco-mode operation | 772 | mV | |||
| V FB(TH) | T A = 25°C, V O = 1.05 V, continuous mode | operation | 758 | 765 | 772 | mV | |
| I (VFB) | V FB input current | V FB = 0.8V, T A = 25°C | 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 = 5.5 V | TPS562200 | 122 | mΩ | ||
| R DS(on)h | T A = 25°C, V BST - SW = 5.5 V | TPS563200 | 68 | mΩ | |||
| R DS(on)l | Low side switch resistance | T A = 25°C | TPS562200 | 72 | mΩ | ||
| R DS(on)l | T A = 25°C | TPS563200 | 39 | mΩ | |||
| CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT |
| I ocl | Current limit (1) | DC current, V OUT = 1.05 V, L OUT = 2.2 μF | TPS562200 | 2.5 | 3.2 | 4.3 | A |
| I ocl | DC current, V OUT = 1.05 V, L OUT = 1.5 μF | TPS563200 | 3.5 | 4.2 | 5.3 | A | |
| THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN | THERMAL SHUTDOWN |
| T SDN | Thermal shutdown (1) | Shutdown temperature | 155 | °C | |||
| T SDN | threshold | Hysteresis | 35 | °C | |||
| 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 OVP | Output OVP threshold | OVP Detect | x | 125% Vfbth | |||
| V UVP | Output Hiccup threshold | Hiccup detect | 65% x Vfbth | ||||
| t HiccupOn | Hiccup On Time | Relative to soft-start time | 1 | ms | |||
| t HiccupOff | Hiccup Off Time | Relative to soft-start time | 7 | ms | |||
| UVLO | UVLO | UVLO | UVLO | UVLO | UVLO | UVLO | UVLO |
| UVLO | UVLO threshold | Wake up VIN voltage | 3.45 | 3.75 | 4.05 | V | |
| UVLO | Hysteresis VIN voltage | 0.13 | 0.32 | 0.55 | V |
Absolute Maximum Ratings
TJ = -40°C to 150°C(unless otherwise noted)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input | VIN, EN | -0.3 | 19 | V |
| Input | VBST | -0.3 | 25 | V |
| Input | VBST (10-ns transient) | -0.3 | 27.5 | V |
| Input | VBST (vs SW) | -0.3 | 6.5 | V |
| Input | VFB | -0.3 | 6.5 | V |
| Input | SW | -2 | 19 | V |
| Input | SW (10-ns transient) | -3.5 | 21 | V |
| Operating junction temperature, T J | Operating junction temperature, T J | -40 | 150 | °C |
| Storage temperature range, T stg | Storage temperature range, T stg | -55 | 150 | °C |
Recommended Operating Conditions
TJ = -40°C to 150°C(unless otherwise noted)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| V IN | Supply input voltage range | 4.5 | 17 | V |
| V I | VBST | -0.1 | 23 | V |
| V I | VBST (10-ns transient) | -0.1 | 26 | V |
| V I | VBST(vs SW) | -0.1 | 6 | V |
| V I | Input voltage range EN | -0.1 | 17 | V |
| V I | VFB | -0.1 | 5.5 | V |
| V I | SW | -1.8 | 17 | V |
| V I | SW (10-ns transient) | -3.5 | 20 | V |
| T A | Operating free-air temperature | Operating free-air temperature | -40 85 | °C |
Thermal Information
| THERMAL METRIC (1) | TPS562200 DDC (SOT) (6 PINS) | TPS563200 DDC (SOT) | UNITS | |
|---|---|---|---|---|
| (6 PINS) | ||||
| R θJA | Junction-to-ambient thermal resistance | 89 | 87.9 | |
| R θJCtop | Junction-to-case (top) thermal resistance | 44.5 | 42.2 | |
| R θJB | Junction-to-board thermal resistance | 13.4 | 13.6 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 2.2 | 1.9 | |
| ψ JB | Junction-to-board characterization parameter | 13.2 | 13.3 |
Typical Application
The TPS562200 and TPS563200 are typically used as step down converters, which convert a voltage from 4.5 V - 17 V to a lower voltage. WEBENCH software is available to aid in the design and analysis of circuits
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| TPS562200 | Texas Instruments | — |
| TPS5622008 | Texas Instruments | — |
| TPS562200DDCR | Texas Instruments | SOT-23-6 Thin, TSOT-23-6 |
| TPS562200DDCR.A | Texas Instruments | — |
| TPS562200DDCR.B | Texas Instruments | — |
| TPS562200DDCT.A | Texas Instruments | — |
| TPS562200DDCT.B | Texas Instruments | — |
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