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MIC29302AWU-TR

3A adjustable LDO, 1.24-15V output, 450mV dropout, TO-263-5, fast transient response

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جزء الشركة المصنعة ： جزء الشركة المصنعة

MIC29302AWU-TR

الحزمة ： الحزمة

TO-263-5 (10.67 x 9.17 x 4.6 mm)

الوصف

نظرة عامة على المنتج

The MIC29302AWU-TR from Microchip Technology is a 3A Fast Response Low-Dropout (LDO) Voltage Regulator in a TO-263-5 surface mount package. It features adjustable output voltage from 1.24V to 15V, 560 mV dropout at full load, and very fast transient response.

المواصفات الرئيسية

نوع الإخراج	Adjustable
Output Voltage Range	1.24 V to 15 V
Max Output Current	3 A
جهد التسرب	450 mV typ @ 3A
نطاق جهد الإدخال	3 V to 16 V
Accuracy	±2%
Ground Current	Low (typical)
Enable Pin	Yes (TTL/CMOS)
Error Flag	Yes
درجة حرارة التشغيل	-40 درجة مئوية إلى +125 درجة مئوية
الحزمة	TO-263-5 (D2PAK)

الميزات

High current capability: 3A over full temperature range
Low dropout voltage of 450 mV at full load
Very fast transient response
Accurate 1% guaranteed output tolerance
Adjustable output from 1.24V to 15V via external resistors
Zero-current shutdown mode via EN pin
Error flag signals output out-of-regulation
Full protection: overcurrent, reversed input, overtemperature

التطبيقات

Processor peripheral and I/O supplies
High-efficiency green computer systems
Automotive electronics
Battery-powered equipment
Post-regulator for switching supplies

مقدمة المنتج:MIC29302AWU-TR مقدمة المنتج

The MIC29302AWU-TR is a high-current, low-dropout voltage regulator from Microchip Technology using the proprietary Super Beta PNP process with a PNP pass element. The 3A LDO features 450 mV dropout voltage at full load and very low ground current. Designed for high-current loads, it also excels in lower current, low-dropout critical systems. The adjustable output can be set from 1.24V to 15V using two external resistors. The device includes comprehensive protection against overcurrent, reversed input, and overtemperature conditions.

مبدأ العمل:MIC29302AWU-TR مبدأ العمل

The MIC29302AWU-TR uses a PNP pass transistor in a common-emitter configuration to achieve low dropout voltage. An error amplifier compares a fraction of the output voltage (set by external feedback resistors) with an internal 1.24V bandgap reference, and drives the PNP pass element to maintain regulation. The EN pin enables TTL/CMOS-controlled shutdown, reducing supply current to near zero. The error flag output becomes active when the output drops out of regulation. Current limiting and thermal shutdown provide fault protection. The Super Beta PNP process minimizes base current, resulting in very low ground current.

وصف الدبوس:MIC29302AWU-TR تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	EN	المدخلات	Enable input (active high, TTL/CMOS compatible)
2	في	الطاقة	Unregulated input voltage (3-16V)
3	GND	أرضي	Ground / Tab
4	انتهى	المخرجات	Regulated output voltage
5	ADJ	المدخلات	Feedback adjustment pin for output voltage set

Application Scenarios:In which products and applications isMIC29302AWU-TR مستعمل

Processor and FPGA I/O power supplies
High-efficiency green computer systems
Automotive ECU power regulation
Post-regulation after switching converters
Battery-powered portable equipment

Alternative Models:What chips are recommended as replacements for MIC29302AWU-TR

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
الرقاقة الدقيقة	MIC29302AWD-TR	TO-252-5	Smaller DPAK package
الرقاقة الدقيقة	MIC29150-3.3WT	TO-263-3	Fixed 3.3V, 1.5A version
تكساس إنسترومنتس	LM1085IT-ADJ	TO-263-3	3A adjustable LDO alternative
إنفينيون	TLE4274	TO-263-5	Automotive 200mA LDO