3.6-V to 36-V, 1-A output, 2-MHz, synchronous step-up and step-down converter, AEC-Q100 qualified
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- 2-V to 36-V Input Voltage Range for VOUT = 5 V
- 5-V or 12-V Fixed Output Voltage (TPS55165-Q1)
- Adjustable Output Voltage Options from 5.7 V to
9 V (TPS55160-Q1 and TPS55162-Q1) - Up to 85% Efficiency
- 1-A Output Current for VOUT = 5 V and VIN ≥ 5.3 V
- 0.8-A Output Current for VOUT = 5 V and
VIN ≥ 3.8 V - 0.4-A Output Current for VOUT = 5 V and
VIN ≥ 2.3 V - Automatic Transition Between Step-Down and Step-Up Mode
- Low-Power Mode for Improved Efficiency at Light Load Conditions (TPS55160-Q1 and
TPS55165-Q1) - Device Quiescent Current Less than 15 µA in Low-Power Mode (TPS55160-Q1 and
TPS55165-Q1) - Device Shutdown Current Less than 3 µA
- Forced Fixed-Frequency Operation at 2 MHz
- Selectable Spread Spectrum (TPS55160-Q1 and TPS55165-Q1)
- Wake-up Through IGN With Power-Latch Function
- Smart Power-Good Output With Configurable Delay Time
- Overtemperature Protection and Output Overvoltage Protection
- Available in Easy-to-Use 20-Pin HTSSOP PowerPAD™ Package
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Description
The TPS5516x-Q1 family of devices is a high-voltage synchronous buck-boost DC-DC converter. The device provides a stable power-supply output from a wide varying input-power supply such as an automotive car battery. The buck-boost overlap control ensures automatic transition between step-down and step-up mode with optimal efficiency. The TPS55165-Q1 output voltage can be set to a fixed level of 5 V or 12 V. The TPS55160-Q1 and TPS55162-Q1 devices have a configurable output voltage ranging from 5.7 V to 9 V that is set by an external resistive divider.
Output currents can be as high as 1 A for a normal car battery voltage, and can be maintained at 0.4 A for lower input voltages, such as those for common battery-cranking profiles. The buck-boost converter is based on a fixed-frequency, pulse-width-modulation (PWM) control circuit using synchronous rectification to obtain maximum efficiency. The switching frequency is set to 2 MHz (typical) which allows for the usage of a small inductor that uses less board space.
A selectable spread-spectrum option (TPS55160-Q1 and TPS55165-Q1) helps reduce radiated electromagnetic interference (EMI). Internal loop compensation eliminates the need for external compensation components. In low-power mode (TPS55160-Q1 and TPS55165-Q1), the device achieves a quiescent current of less than 15 µA which allows an automotive electronic control unit (ECU) to stay in standby mode (for example, listen-to-CAN mode) while achieving OEM quiescent-current requirements. The low-power mode can be disabled which forces the converter to operate in full continuous mode at a fixed switching frequency of 2 MHz (typical) for the entire load-current range. The maximum average current in the inductor is limited to a typical value of 2 A.
The converter can be disabled to minimize battery drain. Furthermore, the device offers a power-good (PG) pin to indicate when the output rail is less than the specified tolerance. The device also has a power-latch function to allow an external microcontroller unit (MCU) to keep the output voltage available for as long as needed.
The device is available in a 20-pin HTSSOP PowerPAD package.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS5516x-Q1 36-V, 1-A Output, 2-MHz, Single Inductor, Synchronous Step-Up and Step-Down Voltage Regulator datasheet | Nov. 27, 2017 |
Functional safety information | TPS5516x-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution | Aug. 12, 2020 | |
Technical article | Solving voltage transient challenges with an integrated buck-boost converter | Mar. 12, 2018 | |
User guide | TPS5516xQ1-EVM Evaluation Module for 1-A Single-Inductor Buck-Boost-Converter | Nov. 06, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The Texas Instruments TPS5516xEVM evaluation module (EVM) helps designers to evaluate the operation and performance of the TPS55160-Q1, a 1A single-inductor buck-boost-converter.
The TPS55160-Q1 allows to set the output voltage through a feedback-divider from 5.7V to 9V.
Features
- TPS55160-Q1-variant default output voltage set to 8 V
- Provides example of layout for good electrical and thermal performance
- Allows selection between Low-Power Mode (LPM) and Pulse Width Modulation (PWM). Default is PWM mode.
- Allows selection of spread spectrum operation. Default is Jumper Installed (...)
Description
The Texas Instruments TPS55165Q1-EVM evaluation module (EVM) helps designers to evaluate the operation and performance of the TPS55165-Q1, a 1A single-inductor buck-boost-converter.
The TPS55165-Q1 has a selectable output voltage of 5V or 12V.
Features
- Provides example of layout for good electrical and thermal performance
- Allows selection between Low-Power Mode (LPM) and Pulse Width Modulation (PWM). Default is PWM mode.
- Allows selection of spread spectrum operation. Default is Jumper Installed, Spread Spectrum Disabled.
- TPS55165-Q1 variant. Default (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (PWP) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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