SMD Marking Code - M28

M28

Total Parts	8/8
Manufacturers	Ricoh Co., Ltd, Philips GmbH, Torex Semiconsuctor Ltd., ON Semiconductor, Unisonic Technologies Co., Ltd.
Functions	DC/DC Voltage Converter Integrated Circuit, Transient Voltage supressor, N-Channel MOSFET, Voltage Detector Integrated Circuit
Cases	SOT-143, SOT-89-5, DO-216AA, SOT-23-5, SOT-25
Pins	4d, 28vdo, 28sd, 24fd, 28gq, 32c3, 28sh, 28zm
Description	Vrwm=28V, Vbr=31.1..34.4V, 3.9A, 175W(1ms) Dual gate, VHF/UHF, 7V, 40mA 2.8V±2%, -Reset ODO PWM/VFM st-dwn, 2.8V±1.5%, 600mA, 2.25MHz, +CE PWM/PFM step-up, 2.8V±2.5%, 200mA, 180kHz, +CE, soft start PFM step-up, 2.8V±2.5%, 400mA, 100kHz, ext.trans. PWM/PFM st-down, 180kHz, 2.8V±2.5%, 1A, +CE, soft start PFM step-up, 2.8V±2.5%, 400mA, 100kHz, ext.trans.

SMD Code	A	Part Number	Manufacturer	Case	Pin	Description
M28	-	1PMT28A	Ons	DO-216AA	4d	Transient Voltage supressor Vrwm=28V, Vbr=31.1..34.4V, 3.9A, 175W(1ms)
M28	-	BF909	Phi	SOT-143	24fd	N-Channel MOSFET Dual gate, VHF/UHF, 7V, 40mA
M28	-	88N28-AF5	Utc	SOT-23-5	28vdo	Voltage Detector Integrated Circuit 2.8V±2%, -Reset ODO
M28	-	RP504N281B	Ric	SOT-23-5	28gq	DC/DC Voltage Converter Integrated Circuit PWM/VFM st-dwn, 2.8V±1.5%, 600mA, 2.25MHz, +CE
M28	eb	XC6368C282MR	Tor	SOT-25	28sh	DC/DC Voltage Converter Integrated Circuit PWM/PFM step-up, 2.8V±2.5%, 200mA, 180kHz, +CE, soft start
M28	eh	XC6382D281M	Tor	SOT-23-5	28sd	DC/DC Voltage Converter Integrated Circuit PFM step-up, 2.8V±2.5%, 400mA, 100kHz, ext.trans.
M28	ek	XC6366C282MR	Tor	SOT-25	28zm	DC/DC Voltage Converter Integrated Circuit PWM/PFM st-down, 180kHz, 2.8V±2.5%, 1A, +CE, soft start
M28	kb	XC6382D281P	Tor	SOT-89-5	32c3	DC/DC Voltage Converter Integrated Circuit PFM step-up, 2.8V±2.5%, 400mA, 100kHz, ext.trans.