HARDWARE / PRODUCTAdded 13 Jul 2026

E28-200 28V SmallSat Electric Power System

ibeos

250W radiation-tolerant 28V SmallSat EPS with peak-power tracking, 96% solar array efficiency, 3.3V/5V/12V/28V buses, 10x switched outputs, RS-422/485/I2C/SPI, 30 kRad TID, TRL 9.

Typed specifications9 values

Discloses 1 of 14 fields engineers filter by in this category (category median 7).

Mass
140 g
product page
Conversion efficiency
96 %
product page
Envelope (L×W×H)
96 x 90 x 14.5 mm
product page
Outputs (as printed)
10x (10 mOhm typical)
product page
Supply voltage
33.6 V
product page
Power consumption
2.5 W
product page
Operating temperature
-40–105 °C
product page
Radiation tolerance (TID)
30 krad
product page
TRL
9
product page

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier16 lines, in the manufacturer's own wording
Max solar array input
>250W (14–34V input)
S/a conversion efficiency
96%
3.3v output
3 A (92% efficiency)
5v output
6 A (93% efficiency)
12v output
4 A (95% efficiency)
Unregulated 28v bus
10 A
Max charge voltage
33.6 V
Max charge current
7 A
Switched outputs
10x (10 mOhm typical)
Interfaces
RS-422/485 @ 115.2 kbps; I2C @ 400 kbps; SPI @ 1 Mbps
Quiescent power
2.5 W
Dimensions
96 x 90 x 14.5 mm
Mass
140 g
Operating temperature
-40 to +105 deg C
TID
30 kRad(Si)
TRL
9

About

The Ibeos E28-200 is a 250W SmallSat Electric Power System providing radiation-tolerant flexible peak-power tracking for 28V battery systems. Delivers regulated 3.3V (3A), 5V (6A), and 12V (4A) buses plus an unregulated 28V battery bus at 10A. Includes 10 switched and unswitched current-limited outputs. Commands and telemetry via RS-422, RS-485 at 115.2 kbps, I2C at 400 kbps, and SPI at 1 Mbps. Protection includes OVP, UVP, OCP, and a configurable watchdog timer. Solar array conversion efficiency is 96%; regulator efficiencies are 92–95%. Operates from -40 to +105 deg C.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: www.ibeos.com ↗

The rest of the range from ibeos

All 8 products →