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MCP1826-ADJE/ET
Microchip Technology
IC REG LINEAR POS ADJ 1A 5DDPAK
2120 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Adjustable 1 Output 1A DDPAK-5
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MCP1826-ADJE/ET
Product Overview
1327405
DiGi Electronics Part Number
MCP1826-ADJE/ET-DGManufacturer
Microchip Technology
MCP1826-ADJE/ET
Description
IC REG LINEAR POS ADJ 1A 5DDPAKInventory
2120 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Adjustable 1 Output 1A DDPAK-5
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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MCP1826-ADJE/ET Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
Tube
Series
-
Product Status
Active
Output Configuration
Positive
Output Type
Adjustable
Number of Regulators
1
Voltage - Input (Max)
6V
Voltage - Output (Min/Fixed)
0.8V
Voltage - Output (Max)
5V
Voltage Dropout (Max)
0.4V @ 1A
Current - Output
1A
Current - Quiescent (Iq)
220 µA
PSRR
60dB (100Hz)
Control Features
Enable, Power Good
Protection Features
Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package
DDPAK-5
Base Product Number
MCP1826
Datasheet & Documents
HTML Datasheet
MCP1826-ADJE/ET-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MCP1826ADJEET
Standard Package
50
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
The logistics updates are consistently accurate and timely.
de desembre 02, 2025
Their customer service team is extremely responsive; they handle my inquiries promptly and professionally.
de desembre 02, 2025
Their prices are competitive and fair, making shopping enjoyable.
de desembre 02, 2025
I’ve never experienced any issues with defective items, thanks to their meticulous quality checks.
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Frequently Asked Questions (FAQ)
What are the critical thermal design considerations when using the MCP1826-ADJE/ET in a compact PCB layout with limited copper pour area?
The MCP1826-ADJE/ET in its DDPAK-5 package relies heavily on PCB copper for heat dissipation, especially when delivering 1A output current near dropout conditions. Without adequate thermal vias and a sufficient ground plane connected to the tab, junction temperatures can exceed safe limits even below the 125°C absolute maximum. Designers should allocate at least 2 in² of 2 oz copper connected to the tab with multiple thermal vias (e.g., 6–9 vias of 0.3 mm diameter) to maintain junction temperature below 100°C under full load. Neglecting this can lead to thermal shutdown or reduced lifetime, particularly in enclosed or high-ambient-temperature environments.
Can the MCP1826-ADJE/ET safely replace a TPS7A4700 in a low-noise analog front-end application, and what trade-offs should I expect?
While both are adjustable LDOs, the MCP1826-ADJE/ET is not a direct drop-in replacement for the TPS7A4700 in ultra-low-noise applications. The TPS7A4700 offers superior PSRR (>70 dB at 10 kHz) and lower output noise (~4 µVrms), whereas the MCP1826-ADJE/ET provides 60 dB PSRR at 100 Hz but significantly less attenuation at higher frequencies. If your design involves sensitive ADCs or RF stages, the MCP1826-ADJE/ET may require additional post-filtering (e.g., LC or π-filter) to meet noise requirements. However, it offers advantages in cost, smaller footprint, and integrated Power Good signaling—making it suitable only if noise margins are validated through bench testing.
How does the enable and Power Good functionality of the MCP1826-ADJE/ET impact power sequencing in multi-rail systems, and what external components are needed?
The MCP1826-ADJE/ET’s Enable pin allows precise control of power-up timing, and the Power Good output can signal stable regulation to downstream circuitry. To implement reliable sequencing, connect the Enable pin to a supervisor IC or microcontroller GPIO with proper pull-down resistance (e.g., 10 kΩ) to prevent floating states. The Power Good output is open-drain and requires an external pull-up resistor (typically 10 kΩ to Vout or a higher rail) to function correctly. Delaying enable until input voltage exceeds UVLO (~2.5V typical) ensures safe startup. Without proper sequencing logic, simultaneous turn-on of multiple rails can cause latch-up or inrush current issues in complex PMIC architectures.
What risks arise from operating the MCP1826-ADJE/ET near its 6V maximum input voltage with transient spikes, and how can they be mitigated?
Operating the MCP1826-ADJE/ET close to its 6V absolute maximum input rating exposes the device to risk from voltage transients common in automotive or industrial environments. Even brief spikes above 6V—such as those from load dumps or inductive switching—can degrade or destroy the regulator. To mitigate this, always include a TVS diode rated for 5.5V clamping voltage and a series input capacitor (e.g., 10 µF ceramic) placed close to the VIN pin. Additionally, consider adding a small ferrite bead or RC snubber if the source impedance is high. Failing to protect against overvoltage transients can result in premature failure, especially since the device lacks internal overvoltage protection beyond the stated maximum.
Is the MCP1826-ADJE/ET suitable for battery-powered IoT devices requiring long standby life, given its 220 µA quiescent current?
With a quiescent current of 220 µA, the MCP1826-ADJE/ET is not ideal for ultra-low-power IoT applications where sleep currents are typically below 10 µA. In battery-operated designs with long idle periods—such as remote sensors—this Iq can dominate total system consumption and significantly reduce battery life. Consider alternatives like the MCP1700 (1.6 µA Iq) or TPS7A02 (25 nA Iq) for such use cases. However, if your system requires 1A peak current and moderate duty cycling, the MCP1826-ADJE/ET can still be viable provided you use its Enable pin to completely shut down the regulator during sleep modes, reducing effective average Iq to near-zero during off periods.
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MCP1826-ADJE/ET CAD Models
Microchip Technology MCP1826-ADJE/ET PCB symbols & footprints
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