Wide-input microchip DC/DC
YSPI28H Series
Manual p. 17
An isolated, regulated 16–50 V input microchip DC/DC converter in an ultra-small HALF CHIP package (16.5 × 22.0 × 6.73 mm, 7.8 g), 25–50 W, up to 334 W/in³.
Semi-custom part numbers can be assigned to your requirement — contact engineering for tightened parameters or extended temperature grades.
Product Features
Isolated, regulated output
Ultra-small package
Maximum volumetric power density 334 W/in³
Weight only 7.8 g
Under/over-voltage, over-current, short-circuit and over-temperature protection
2250 Vdc isolation
Operating temperature −55 °C to +100 °C
HALF CHIP package 16.5 × 22.0 × 6.73 mm
Complies with SJ 20668 (General specification for microcircuit modules)
Part Numbering Rule
YSPI – 28 – H – 12 – M – 50 – L – S – -
YSPIIsolated, regulated microchip series
28Input voltage: 16–50 V
HPackage: HALF CHIP
12Output voltage, e.g. 05 = 5 V, 12 = 12 V
MTemperature grade — M: Tc −55~100 °C, Ts −65~100 °C · H: Tc −40~100 °C, Ts −55~100 °C · T: Tc −40~100 °C, Ts −40~100 °C
50Output power: 50 = 50 W
LPin type: L = surface mount
SParallel function: P = parallel-capable, S = stand-alone
-Version: default = standard, 01 = other
Product Model List
10 catalogued part numbers
| Part number | V-in | V-out | Adjust range | I-out | P-out | η | Status |
|---|---|---|---|---|---|---|---|
| YSPI28H3V3M33L | 16–50 V | 3.3 V | 2.97–3.63 V | 10 A | 33 W | 83.0 % | In development |
| YSPI28H05M50L | 16–50 V | 5.0 V | 4.00–5.50 V | 10 A | 50 W | 85.3 % | Available |
| YSPI28H12M50L | 16–50 V | 12 V | 9.60–13.2 V | 4.2 A | 50 W | 88.0 % | Available |
| YSPI28H15M50L | 16–50 V | 15 V | 12.0–16.5 V | 3.3 A | 50 W | 88.0 % | In development |
| YSPI28H18M50L | 16–50 V | 18 V | 14.4–19.8 V | 2.8 A | 50 W | 88.0 % | In development |
| YSPI28H24M50L | 16–50 V | 24 V | 22.4–30.8 V | 2.1 A | 50 W | 88.5 % | In development |
| YSPI28H28M50L | 16–50 V | 28 V | 22.4–30.8 V | 1.8 A | 50 W | 88.5 % | In development |
| YSPI28H48M50L | 16–50 V | 48 V | 36.0–52.8 V | 1.8 A | 50 W | 89.0 % | In development |
| YSPI28H05M25L | 16–50 V | 5.0 V | 4.00–5.50 V | 5.0 A | 25 W | 84.5 % | Available |
| YSPI28H12M25L | 16–50 V | 12 V | 9.60–13.2 V | 2.1 A | 25 W | 87.0 % | Available |
For the complete selection, please contact engineering — more variants, packages and grades are available than listed here.
Contact engineering6 of 10 part numbers are marked “in development” in the manual — contact engineering for availability.