15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Voltage Range: 2 V to 15 V
- Up to 96% Efficiency
- Power Save Mode With 11-µA Quiescent Current
- Output Current 75 mA
- Output Voltage Range: 1.2 V to 5.5 V
- Up to 800-kHz Switch Frequency
- Synchronous Converter, No External Rectifier
- Low Output Ripple Voltage
- 100% Duty Cycle for Lowest Dropout
- Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm
DFN 6-Pin (TPS62122) Package - Internal Soft Start
- Power Good Open Drain Output (TPS62120)
- Open-Drain Output for Output Discharge
(TPS62120) - 2.5-V Rising and 1.85-V Falling UVLO Thresholds
Description
The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors.
The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.
With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation.
In shutdown mode, the device is turned off.
An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.
The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.
The TPS6212x operates over an free air temperature range of 40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS62120EVM-640 is a fully assembled and tested platform for evaluating the operation and performance of the TPS62120 converter. The TPS62120EVM-640 has an input voltage range from 2.0 V up to 15 V, and the output voltage is adjustable with an external feedback divider network in the range of (...)
Features
- High input voltage range: 2.0 V up to 15 V
- Adjustable output voltage: 1.2 V up to 5.5 V
- Up to 75-mA output current
- Up to 800-kHz switching frequency
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
- (...)
Reference designs
Design files
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download PMP20080 BOM.pdf (76KB) -
download PMP20080 Assembly Drawing.pdf (391KB) -
download PMP20080 PCB.pdf (1776KB) -
download PMP20080 Altium.zip (18432KB) -
download PMP20080 Gerber.zip (2061KB)
Design files
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download PMP5539 BOM.pdf (22KB) -
download PMP5539 PCB.pdf (91KB)
Design files
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download PMP9752 BOM.pdf (51KB) -
download PMP9752 Gerber.zip (183KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DCN) | 8 | 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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