الصفحة الرئيسية > الدوائر المتكاملة الدوائر المتكاملة > MCP1826T-3302E/DC

MCP1826T-3302E/DC

1A 3.3V LDO, 250mV dropout, 120µA Iq, PG output, AEC-Q100, SOT-223-5

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جزء الشركة المصنعة ： جزء الشركة المصنعة

MCP1826T-3302E/DC

الحزمة ： الحزمة

SOT-223-5 (6.5 x 3.5 x 1.6 mm)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

الدوائر المتكاملة الدوائر المتكاملة, منظِّمات التسرب المنخفض (LDO)

توصيات أخرى قد تكون مهتماً بها.

C1206C226Z9VAC-TU

الوصف

نظرة عامة على المنتج

The MCP1826T-3302E/DC is a 1A, 3.3V fixed-output LDO regulator from Microchip Technology with AEC-Q100 automotive qualification. It features low 250 mV typical dropout voltage, 120 µA quiescent current, power-good output, and shutdown function in a SOT-223-5 package.

المواصفات الرئيسية

جهد الخرج	3.3 V (fixed)
تيار الإخراج	1000 mA
نطاق جهد الإدخال	2.3 V to 6.0 V
جهد التسرب	250 mV typical at 1000 mA
Output Voltage Accuracy	±0.5% (typical), ±2% (max)
تيار التهدئة	120 µA typical
تيار إيقاف التشغيل	0.1 µA typical
Power-Good Output	Yes (fixed delay)
Shutdown (EN) Pin	Yes
Output Capacitor	1.0 µF ceramic (stable)
درجة حرارة التشغيل	-40 درجة مئوية إلى +125 درجة مئوية
المؤهلات	AEC-Q100
الحزمة	SOT-223-5 (DC)

الميزات

1A output current capability
Low dropout: 250 mV typical at 1000 mA
3.3V fixed output with ±0.5% typical accuracy
Stable with 1.0 µF ceramic output capacitor
Fast transient response
Low quiescent current: 120 µA typical
Shutdown current: 0.1 µA typical
Power-good output with fixed delay
Short circuit current limiting and overtemperature protection
مؤهل AEC-Q100 لتطبيقات السيارات

التطبيقات

Automotive electronics
High-speed driver chipset power
Networking backplane cards
Notebook computers
Network interface cards
Palmtop and portable devices

مقدمة المنتج:MCP1826T-3302E/DC مقدمة المنتج

The MCP1826T-3302E/DC is a 1A, 3.3V fixed-output, Low Dropout (LDO) linear regulator from Microchip Technology with AEC-Q100 automotive qualification. It features low dropout voltage (250 mV typical at 1000 mA), high output voltage accuracy (±0.5% typical), and is stable with only a 1.0 µF ceramic output capacitor. The device includes a shutdown (EN) pin that reduces supply current to 0.1 µA, and a power-good output with fixed delay for supply monitoring. Short circuit current limiting and overtemperature protection ensure robust operation in demanding environments.

مبدأ العمل:MCP1826T-3302E/DC مبدأ العمل

The MCP1826 uses a P-channel MOSFET pass transistor controlled by an error amplifier that compares a divided version of the output voltage to an internal precision bandgap reference. The low RDS(ON) of the PMOS pass transistor achieves 250 mV dropout at full 1A load. The error amplifier provides fast transient response to load steps. The power-good (PG) comparator monitors the output voltage through an internal voltage divider and asserts the open-drain PG output after a fixed delay when the output is within regulation. The enable (EN) pin controls the pass transistor gate; when EN is low, the pass transistor is turned off, reducing supply current to 0.1 µA. Current limiting and thermal shutdown protect against overload and overheating conditions.

وصف الدبوس:MCP1826T-3302E/DC تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوصف
1	VIN	الطاقة	Input supply voltage (2.3-6.0V)
2	GND	الطاقة	Ground / thermal tab
3	EN	المدخلات	Enable input (active high)
4	PG	المخرجات	Power-good open-drain output
5	VOUT	الطاقة	Regulated 3.3V output
علامة التبويب	GND	الطاقة	Thermal tab (connect to GND plane)

Application Scenarios:In which products and applications isMCP1826T-3302E/DC مستعمل

Automotive ECU Power: AEC-Q100 qualification ensures reliable 3.3V regulation in engine and body control modules
Networking Equipment: 1A output with fast transient response powers high-speed driver chipsets on backplane cards
Portable Devices: 120 µA quiescent current and 0.1 µA shutdown extend battery life in palmtop computers
Power Sequencing: PG output with fixed delay enables orderly power-up sequencing in multi-rail systems
Notebook Computers: Low dropout at 1A allows efficient 3.3V regulation from 3.6V+ battery rails

Alternative Models:What chips are recommended as replacements for MCP1826T-3302E/DC

الطراز	الشركة المصنعة	الفرق الرئيسي	الحزمة	المخرجات
MCP1826T-5002E/DC	الرقاقة الدقيقة	5.0V output version for 5V logic systems with same 1A current and low 210mV dropout	SOT-223-3	5.0V fixed
MCP1826T-ADJE/DC	الرقاقة الدقيقة	Adjustable output version (0.8-5.0V) for custom voltage rails with external resistor divider	SOT-223-3	0.8-5.0V adj
MCP1825T-3302E/DC	الرقاقة الدقيقة	500mA lower-current version with even lower 150mV dropout for light-load applications	SOT-223-3	3.3V fixed
TLV1117LV33DCYR	TI	Equivalent 3.3V/1A LDO with 300mV dropout and 500uA quiescent current	SOT-223-3	3.3V fixed
NCV8164ASN330T1G	أونسمي	Automotive-grade 300mA LDO with 70dB PSRR and AEC-Q100 qualification	TSNP-4	3.3V fixed
AP2112K-3.3TRG1	شركة ديودز	600mA LDO in SOT-23-5 with 60dB PSRR and enable pin for power sequencing	SOT-23-5	3.3V fixed

The MCP1826T-3302E/DC is a 1A low-dropout regulator in SOT-223-3 with 210mV dropout and 0.35%/V line regulation. For adjustable output, use the -ADJE version. The 5.0V version (-5002E) is pin-compatible. All require only 1uF ceramic output capacitor for stability.