Elmo

Elmo is the codename of the Power Management IC (PMIC) of the PS Vita. The PMIC is responsible for generating the various voltages required by Kermit and probably other devices on the board.

Hardware

The Elmo PMIC is manufactured by Fujitsu. All models are part of the custom "MB44" series but the exact model used depends on the unit.

Ernie can communicate with Elmo via I²C.

MB44C026A on the PCH-1001 FCC application unit

MB44C032 on the PCH-2001 FCC application unit

MB44C026

Seen in: DEM-3000G, PDEL-1000 (IRT-002)

Date codes: 1021, 1139

MB44026A

Seen in: PCH-1001 FCC application unit, PCH-1xxx (IRS-002), VTE-1xxx (DOL-1001)

Date codes: 1125, 1149, 1221

MB44C029

Seen in: PCH-1000 (IRS-1001)

Date codes: 1240

MB44C032

Uses a black package instead of white/metallic.

Seen in: PCH-2001 FCC application unit, PCH-2000 (USS-1001)

Date codes: 1448, 1330