2.75-V to 6-V, 3-A step-down module with adjustable-frequency & tracking in 3 x 4-mm μSIP package
Product details
Parameters
Package | Pins | Size
Features
- Input voltage range: 2.75 V to 6 V
- Output voltage range: 0.6 V to 5.5 V
- Adjustable and synchronizable switching frequency of 1.8 MHz to 4 MHz
- Spread spectrum clocking - optional
-
Selectable forced PWM or PFM/PWM operation
- Output voltage accuracy ±1% (PWM operation)
- Power-good output with window comparator
- 100% duty cycle
- Output discharge
- Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
- 15-µA typical quiescent current
- Adjustable soft-start or tracking
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Description
TPSM8281x is a family of pin-to-pin 3-A and 4-A compatible high efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. They are based on a fixed-frequency peak current-mode control topology. They are used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 4-A continuous output current at high ambient temperatures. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PFM/PWM mode, the TPSM8281x automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPSM8281x provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This allows external sequencing of different supply rails and limits the inrush current during start-up.
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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 TPSM82810EVM-089 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPSM82810 power module. The EVM converts a 2.75-V to 6-V input voltage to a 1.8-V regulated output voltage at up to 4-A of output current. The TPSM82810 includes (...)
Features
- 2.75-V to 6-V input voltage range
- 1.8-V output voltage (adjustable)
- 4-A output current
- 86-mm² total solution size
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 |
|---|---|---|
| uSiP (SIL) | 14 | 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
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Support & training
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