TPS63020
Synchronous Buck-boost ConverterThe TPS63020 is a synchronous buck-boost converter from Texas Instruments. View the full TPS63020 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Integrated CircuitsKey Specifications
| Parameter | Value |
|---|---|
| Output Current | 3.5A (Switch) |
| Switching Frequency | 2.4MHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 14-VFDFN Exposed Pad |
| Supplier Device Package | 14-VSON (4x3) |
| Synchronous Rectifier | Yes |
| Topology | Buck-Boost |
| Input Voltage (Max) | 5.5V |
| Input Voltage (Min) | 1.8V |
| Output Voltage (Max) | 5.5V |
| Output Voltage | 1.2V |
Overview
Part: TPS63020, TPS63021 — Texas Instruments
Type: Synchronous Buck-boost Converter
Description: High efficiency single inductor buck-boost converter with 4-A switches, supporting input voltages from 1.8 V to 5.5 V and adjustable output voltages from 1.2 V to 5.5 V, capable of delivering up to 3 A output current.
Operating Conditions:
- Supply voltage: 1.8 V to 5.5 V
- Operating temperature: -40°C to 85°C
- Output voltage: 1.2 V to 5.5 V
- Output current: up to 3 A
Absolute Maximum Ratings:
- Max supply voltage: 6 V
- Max continuous current: 4 A (average current in switches)
- Max junction/storage temperature: 150 °C
Key Specs:
- Input voltage range: 1.8 V to 5.5 V
- Adjustable output voltage: 1.2 V to 5.5 V
- Output current (VIN > 2.5 V, VOUT = 3.3 V): 2 A
- Operating quiescent current: 25 μA
- Fixed frequency operation: 2.4 MHz
- Maximum average current in switches: 4 A (typical)
- Load disconnect during shutdown
Features:
- High efficiency over the entire load range
- Power save mode with mode selection
- Automatic transition between modes
- Synchronization possible
- Power good output
- Overtemperature, overvoltage protection
- Load disconnect during shutdown
Applications:
- Pre-regulation in battery-powered devices: EPOS (portable data terminal, barcode scanner), e-cigarette, single board computer, IP network camera, video doorbell, land mobile radios
- Voltage stabilizer: wired communication, wireless communication, PLC, optical module
- Backup supercapacitor supply: electricity meter, solid state drive (SSD) - enterprise
Package:
- VSON (14)
Features
- 1 · Input voltage range: 1.8 V to 5.5 V
- Adjustable output voltage: 1.2 V to 5.5 V
- Output current for VIN > 2.5 V, VOUT = 3.3 V: 2 A
- High efficiency over the entire load range
- -Operating quiescent current: 25 μA
- -Power save mode with mode selection
- Average current mode buck-boost architecture
- -Automatic transition between modes
- -Fixed frequency operation at 2.4 MHz
- -Synchronization possible
- Power good output
- Safety and robust operation features
- -Overtemperature, overvoltage protection
- -Load disconnect during shutdown
- Create a custom design using the
- -TPS63020 with WEBENCH Power Designer
- -TPS63021 with WEBENCH Power Designer
Applications
- Pre-regulation in battery-powered devices: EPOS (portable data terminal, barcode scanner), ecigarette, single board computer, IP network camera, video doorbell, land mobile radios
- Voltage stabilizer: wired communication, wireless communication, PLC, optical module
- Backup supercapacitor supply: electricity meter, solid state drive (SSD) - enterprise
SPACE
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Pin Configuration
Pin Functions
Pin Functions
| PIN | PIN | I/O | DESCRIPTION |
|---|---|---|---|
| NAME | NO. | I/O | DESCRIPTION |
| EN | 12 | I | Enable input (1 enabled, 0 disabled), must not be left open |
| FB | 3 | I | Voltage feedback of adjustable versions, must be connected to VOUT on fixed output voltage versions |
| GND | 2 | - | Control / logic ground |
| L1 | 8, 9 | I | Connection for inductor |
| L2 | 6, 7 | I | Connection for inductor |
| PG | 14 | O | Output power good (1 good, 0 failure; open-drain), can be left open |
| PGND | - | Power ground | |
| PS/SYNC | 13 | I | Enable / disable power save mode (1 disabled, 0 enabled, clock signal for synchronization), must not be left open |
| VIN | 10, 11 | I | Supply voltage for power stage |
| VINA | 1 | I | Supply voltage for control stage |
| VOUT | 4, 5 | O | Buck-boost converter output |
| Exposed Thermal Pad | - | The exposed thermal pad is connected to PGND. |
Pin Functions
Electrical Characteristics
over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| DC/DC STAGE | DC/DC STAGE | DC/DC STAGE | DC/DC STAGE | DC/DC STAGE | DC/DC STAGE | DC/DC STAGE |
| V IN | Input voltage | 1.8 | 5.5 | V | ||
| V IN | Minimum input voltage for start-up | 0°C ≤ T A ≤ 85°C | 1.5 | 1.8 | 1.9 | V |
| V IN | Minimum input voltage for start-up | 1.5 | 1.8 | 2.0 | V | |
| V OUT | TPS63020 output voltage | 1.2 | 5.5 | V | ||
| V OUT | Duty cycle in step down conversion | 20% | ||||
| V FB_PWM | TPS63020 feedback voltage | 495 | 500 | 505 | mV | |
| V FB_PWM | TPS63021 output voltage | PS/SYNC = V IN | 3.267 | 3.3 | 3.333 | V |
| V FB_PS | TPS63020 feedback voltage / TPS63021 output voltage regulation in PS mode | PS/SYNC = GND; referenced to V FB_PWM | 0.6% | 5% | ||
| V FB_PS | Maximum line regulation | 0.5% | 0.5% | 0.5% | ||
| V FB_PS | Maximum load regulation | 0.5% | ||||
| f | Oscillator frequency | 2200 | 2400 | 2600 | kHz | |
| f | Frequency range for synchronization | 2200 | 2400 | 2600 | kHz | |
| I SW | Average switch current limit | V IN = V INA = 3.6 V, T A = 25°C | 3500 | 4000 | 4500 | mA |
| I SW | High side switch on resistance | V IN = V INA = 3.6 V | 50 | m Ω | ||
| I SW | Low side switch on resistance | V IN = V INA = 3.6 V | 50 | m Ω | ||
| I q | Quiescent VIN and | VINA I OUT = 0 mA, V EN = V IN = V INA = 3.6 | 25 | 50 | μ A | |
| I q | current | V, V OUT = 3.3 V VOUT | 5 | 10 | μ A | |
| I q | TPS63021 FB input impedance | V EN = HIGH | 1 | M Ω | ||
| I S | Shutdown current | V EN = 0 V, V IN = V INA = 3.6 V | 0.1 | 1 | μ A | |
| CONTROL STAGE | CONTROL STAGE | CONTROL STAGE | CONTROL STAGE | CONTROL STAGE | CONTROL STAGE | CONTROL STAGE |
| UVLO | Under voltage lockout threshold | V INA voltage decreasing | 1.4 | 1.5 | 1.6 | V |
| UVLO | Under voltage lockout hysteresis | 200 | mV | |||
| V IL | EN, PS/SYNC input low voltage | 0.4 | V | |||
| V IH | EN, PS/SYNC input high voltage | 1.2 | V | |||
| EN, PS/SYNC input current | Clamped to GND or VINA | 0.01 | 0.1 | μ A | ||
| PG output low voltage | V OUT = 3.3 V, I PGL = 10 μ A | 0.04 | 0.4 | V | ||
| PG output leakage current | 0.01 | 0.1 | μ A | |||
| Output overvoltage protection Overtemperature protection Overtemperature hysteresis | 5.5 140 20 | 7 | V °C °C |
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | |
|---|---|---|---|
| Voltage (2) | -0.3 | 7 | V |
| -0.3 | 7 | V | |
| -3 | 10 | V | |
| Operating junction temperature, T J | -40 | 150 | °C |
| Storage temperature, T stg | -65 150 °C |
Recommended Operating Conditions
| MIN | NOM | MAX | UNIT | |
|---|---|---|---|---|
| Supply voltage at VIN, VINA | 1.8 | 5.5 | V | |
| Operating free air temperature, T A | -40 | 85 | °C | |
| Operating junction temperature, T J | -40 | 125 | °C |
Thermal Information
| THERMAL METRIC (1) | THERMAL METRIC (1) | TPS6302x DSJ (VSON) 14 PINS | UNIT |
|---|---|---|---|
| R θ JA | Junction-to-ambient thermal resistance | 41.8 | °C/W |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 47 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 17 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 0.9 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 16.8 | °C/W |
| R θ JC(bot) | Junction-to-case (bottom) thermal resistance | 3.6 | °C/W |
Typical Application
The TPS6302x are high efficiency, low quiescent current, non-inverting buck-boost converters suitable for applications that need a regulated output voltage from an input supply that can be higher, lower, or equal to the output voltage. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The average current in the switches is limited to a typical value of 4 A.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| TPS63020-Q1 | Texas Instruments | — |
| TPS63020DSJR | Texas Instruments | 14-VFDFN Exposed Pad |
| TPS63020DSJR.A | Texas Instruments | — |
| TPS63020DSJR.B | Texas Instruments | — |
| TPS63020DSJT | Texas Instruments | — |
| TPS63020DSJT.A | Texas Instruments | — |
| TPS63020DSJT.B | Texas Instruments | — |
| TPS63021 | Texas Instruments | — |
| TPS6302X | Texas Instruments | — |
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