TPSM82A823A vs TPSM82A824A: 3A and 4A MicroSiP Power Modules
TPSM82A823A
Mfr. Part #: TPSM82A823ASIHR
Manufacturer: Texas Instruments
Package/Case: 10-pin MicroSiP / USIP (SIH), 2.5 × 2mm, 1.2mm maximum height
Description: 2.5V to 5.5V input, 3A synchronous buck power module with integrated inductor, forced-PWM operation and 2.2MHz fixed switching frequency.
TPSM82A824A
Mfr. Part #: TPSM82A824ASIHR
Manufacturer: Texas Instruments
Package/Case: 10-pin MicroSiP / USIP (SIH), 2.5 × 2mm, 1.2mm maximum height
Description: 2.5V to 5.5V input, 4A synchronous buck power module with integrated inductor, forced-PWM operation and 2.2MHz fixed switching frequency.
The TPSM82A823A and TPSM82A824A are high-efficiency synchronous step-down converter modules designed for space-constrained point-of-load power supplies.
Both devices integrate the switching converter and inductor in a 10-pin MicroSiP package measuring only 2.5 × 2mm with a maximum height of 1.2mm. Their electrical features are nearly identical; the main selection difference is the maximum output current.
TPSM82A823A vs TPSM82A824A
| Parameter | TPSM82A823A | TPSM82A824A |
|---|---|---|
| Maximum output current | 3A | 4A |
| Input voltage | 2.5V to 5.5V | 2.5V to 5.5V |
| Output voltage | Adjustable from 0.6V to VIN | Adjustable from 0.6V to VIN |
| Operating mode | Forced PWM | Forced PWM |
| Switching frequency | 2.2MHz fixed | 2.2MHz fixed |
| Control architecture | Peak current mode | Peak current mode |
| Typical quiescent current | 26µA at VIN = 5V, non-switching | 26µA at VIN = 5V, non-switching |
| Duty cycle | Up to 100% | Up to 100% |
| Package | 10-pin MicroSiP, SIH | 10-pin MicroSiP, SIH |
| Design size | 2.5 × 2mm | 2.5 × 2mm |
| Maximum height | 1.2mm | 1.2mm |
| Best fit | Rails requiring up to 3A | Rails requiring more than 3A or additional current margin |
Typical Applications
FPGA and ASIC point-of-load rails
Optical and telecom modules
Cameras, sensors and imaging systems
Compact industrial electronics
Portable test and measurement equipment
Space-constrained embedded systems
FAQ
What is the main difference between TPSM82A823A and TPSM82A824A?
The maximum output current is the primary difference. TPSM82A823A supports up to 3A, while TPSM82A824A supports up to 4A.
Do the two modules use the same package?
Yes. Both use a 10-pin SIH MicroSiP package with a 2.5 × 2mm design size and 1.2mm maximum height. Verify the latest TI land pattern and pin assignment before substitution.
Are TPSM82A823A and TPSM82A824A power-save devices?
No. The A-suffix versions operate in forced PWM. The TPSM82A823 and TPSM82A824 versions without the A suffix provide automatic power-save mode at light loads.
Can these modules generate a 5V output?
The output is adjustable from 0.6V up to VIN. A 5V output therefore requires sufficient input voltage and must satisfy the device's dropout and operating limits.
Can TPSM82A824A always deliver 4A?
Not under every operating condition. Designers must check the TI thermal and safe-operating-area curves for the selected input voltage, output voltage, PCB layout, airflow and ambient temperature.
Are these devices compatible with earlier TI MicroSiP modules?
TI specifies pin and footprint compatibility with TPSM82821, TPSM82822 and TPSM82823. Electrical ratings and operating modes should still be reviewed before replacement.
