1.5-V to 40-V, 500-mA buck-boost converter with 5-V fixed output voltage, 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
Range - Device HBM ESD Classification Level 1B
- Device CDM ESD Classification Level C4B
- Device Temperature Grade 1: –40°C to
- Switched-Mode Regulator
- 5 V ±2%, Normal Mode
- 5 V ±3%, Low-Power or Crossover Mode
- Switching Frequency, 440 kHz (Typical)
- Input Operating Range, 1.5 V to 40 V, (Vdriver)
- 500-mA Load-Current Capability
- 200-mA Load-Current Capability Down to 2-V
Input (Vdriver) - 120-mA Load-Current Capability Down to
1.5-V Input (Vdriver)
- Enable Function
- Low-Power Operation Mode
- Switched 5-V Regulated Output on 5Vg With
Current Limit - Programmable Slew Rate and Frequency
Modulation for EMI Consideration - Reset Function With Deglitch Timer and
Programmable Delay - Alarm Function for Undervoltage Detection and
Indication - Thermally Enhanced Package for Efficient Heat
Management
Description
The TPS55065 is a switched-mode regulator with integrated switches for voltage-mode control. With the aid of external components (LC combination), the device regulates the output to 5 V ±3% for a wide input-voltage range.
The TPS55065 device offers a reset function to detect and indicate when the 5-V output rail is outside of the specified tolerance. This reset delay is programmable using an external timing capacitor on the REST terminal. Additionally, an alarm (AOUT) feature is activated when the input supply rail Vdriver is below a prescaled specified value (set by the AIN terminal).
The TPS55065 device has a frequency-modulation scheme to minimize EMI. The clock modulator permits a modulation of the switching frequency to reduce interference energy in the frequency band.
The 5-Vg output is a switched 5-V regulated output with internal current limiting to prevent assertion of RESET when powering a capacitive load on the supply line. This function is controlled by the 5Vg_ENABLE terminal. If there is a short to ground on this output (5Vg output), the output self-protects by operating in a chopping mode. This does, however, increase the output ripple voltage on VOUT during this fault condition.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS55065-Q1 Buck and Boost Switched-Mode Regulator datasheet (Rev. A) | Jan. 16, 2015 |
User guide | TPS55065EVM User's Guide | Nov. 06, 2009 |
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 TPS55065EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS55065 Switch Mode Power Supply - Buck / Boost Regulator. The EVM contains one DC/DC converter.
Features
- Switch-Mode Regulator
- 5V+/-2%, Normal Mode
- 5V+/-3%, Low-Power or Crossover Mode
- Switching Frequency, 440 kHz (typical)
- Input Operating Range, 1.5V to 40V, (Vdriver)
- 500-mA Load-Current Capability
- 200-mA Load-Current Capability Down to 2V Input (Vdriver)
- 120-mA Load-Current Capability Down to 1.5V Input (...)
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
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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