60-nA IQ, 1.8-V to 6.5-VIN, high-efficiency 750-mA step-down converter
Product details
Parameters
Package | Pins | Size
Features
- 60-nA operating quiescent current
- 100% duty-cycle mode with 120-nA IQ
- Input voltage range VIN from 1.8 V to 6.5 V
- Output current up to 750 mA
- RF friendly DCS-Control™
- 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
- 16 selectable output voltages via VSET pin
- Auto transition PFM/PWM or forced-PWM mode
- Selectable forced PWM and STOP modes
- Output discharge function
- 25-nA shutdown current
- SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages
All trademarks are the property of their respective owners.
Description
The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.
The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.
16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.
The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.
The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.
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 TPS62840-1DLCEVM55 evaluation module (EVM) facilitates the evaluation of the TPS6284XDLC family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 2.0-mm QFN packages. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from higher input voltages (...)
Features
- 1.8-V to 6.5-V input voltage range
- 750-mA output current
- 60-nA quiescent current
- 1.5 x 2.0 mm² QFN package
- Two independent circuits to support a range of output voltages (0.8 V to 3.3 V)
Description
The TPS62840-1YBGEVM056 evaluation module (EVM) facilitates the evaluation of the TPS6284XYBG family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 1-mm WCSP packages with 0.4-mm pitch. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from (...)
Features
- 1.8-V to 6.5-V input voltage range
- 750-mA output current
- 60-nA quiescent current
- 1.5 x 2.0 mm² WCSP package
- 1-mm maximum solution height
- Two independent circuits to support a range of output voltages (0.8 V to 3.3 V)
Description
The TPS62841-2EVM123 evaluation module (EVM) facilitates the evaluation of the TPS6284XDGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains two separate circuits to create output voltages between 0.8 V and 3.6 V from higher input voltages (...)
Features
- 1.8-V to 6.5-V input voltage range
- 750-mA output current
- 60-nA quiescent current
- Thermally enhanced HVSSOP package
- Two independent circuits to support a range of output voltages (0.8 V to 3.6 V)
Description
The TPS62842EVM-103 evaluation module (EVM) facilitates the evaluation of the TPS62842DGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains a circuit to convert output voltages between 1.8 V and 3.6 V from higher input voltages between 1.8 V and (...)
Features
- 1.8-V to 6.5-V input voltage range
- 750-mA output current
- 60-nA quiescent current
- Thermally enhanced HVSSOP package
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
-
download TIDA-010072 BOM.pdf (149KB) -
download TIDA-010072 Assembly Drawing.pdf (498KB) -
download TIDA-010072 PCB.pdf (2120KB) -
download TIDA-010072 CAD Files.zip (8297KB) -
download TIDA-010072 Gerber.zip (2994KB)
Design files
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YBG) | 6 | View options |
HVSSOP (DGR) | 8 | View options |
VSON-HR (DLC) | 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
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.