Product Summary

The mic38c45ym is a BiCMOS current-mode PWM controller. The mic38c45ym is pin compatible with 384×bipolar devices but features several improvements. Applications of the mic38c45ym include: current-mode, off-line, switched-mode power supplies, current-mode, dc-to-dc converters, step-down buck regulators, set-up boost regulators, flyback, isolated regulators, foward converters and sybchronous FET converters.

Parametrics

mic38c45ym absolute maximum ratings: (1) zener current (VDD) : 30mA; (2) Supply voltage (VDD) : 20V; (3) Switch supply voltage (VD) : 20V; (4) Current sense voltage (VISNS) : -0.3 to 5.5V; (5) feedback voltage (VFB) : -0.3 to 5.5V; (6) output current: 0.5A; (7) storage temperature TA: -65 to +150°C; (8) Junction temperature (Tj) : 150°C.

Features

mic38c45ym features: (1) fast 40ns output rise and 30ns output fall times; (2) -40 to +85°C temperature range meet UC284×specifications; (3) high-performance, low-power BiCMOS process; (4) ultralow start-up current (50μA typical) ; (5) low operating current (4mA typical) ; (6) CMOS outputs with rail-to-rail swing; (7) trimmed 5V bandgap reference; (8) UVLO with hysteresis; (9) low cross-conduction currents.

Diagrams

mic38c45ym functional diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MIC38C45YM
MIC38C45YM

IC REG CTRLR BST FLYBK ISO 8SOIC
Data Sheet
0-1: $1.29
1-25: $1.03
25-100: $0.77
100-250: $0.72
250-500: $0.70
MIC38C45YM TR
MIC38C45YM TR

IC REG CTRLR BST FLYBK ISO 8SOIC
Data Sheet
0-2500: $0.66
MIC38C45YMM TR
MIC38C45YMM TR

IC REG CTRLR BST FLYBK ISO 8MSOP
Data Sheet
0-2500: $0.71
MIC38C45YMM
MIC38C45YMM

IC REG CTRLR BST FLYBK ISO 8MSOP
Data Sheet
0-600: $0.75