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MIC5265-2.9YD5
Microchip Technology
IC REG LIN 2.9V 150MA TSOT23-5
3440 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA TSOT-23-5
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5.0 / 5.0
- (174 Ratings)
MIC5265-2.9YD5
Product Overview
1322392
DiGi Electronics Part Number
MIC5265-2.9YD5-DGManufacturer
Microchip Technology
MIC5265-2.9YD5
Description
IC REG LIN 2.9V 150MA TSOT23-5Inventory
3440 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA TSOT-23-5
Quantity
Minimum 1
Minimum 1
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MIC5265-2.9YD5 Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
-
Series
-
Product Status
Obsolete
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
5.5V
Voltage - Output (Min/Fixed)
2.9V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.5V @ 150mA
Current - Output
150mA
Current - Quiescent (Iq)
2 µA
Current - Supply (Max)
150 µA
PSRR
64dB ~ 62dB (1kHz ~ 100Hz)
Control Features
Enable
Protection Features
Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5 Thin, TSOT-23-5
Supplier Device Package
TSOT-23-5
Base Product Number
MIC5265
Datasheet & Documents
HTML Datasheet
MIC5265-2.9YD5-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
1
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Excellent rapport qualité-prix, tout est toujours parfait lors de mes achats.
Dec 02, 2025
Ich bin stets zufrieden mit der schnellen Lieferung und der sicheren Verpackung bei DiGi Electronics.
Dec 02, 2025
I always feel valued as a customer thanks to their attentive after-sales care.
Dec 02, 2025
The packaging from DiGi Electronics is robust and reliable, giving me confidence that my order will arrive safe and intact.
Dec 02, 2025
Their friendly customer service team helps resolve issues swiftly and courteously.
Dec 02, 2025
DiGi Electronics’ prices are fair, and their support is seriously dependable.
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Frequently Asked Questions (FAQ)
Can the MIC5265-2.9YD5 be used in battery-powered IoT sensors where ultra-low quiescent current is critical, and how does its 2µA Iq impact battery life in deep-sleep applications?
Yes, the MIC5265-2.9YD5 is well-suited for battery-powered IoT sensors due to its very low 2µA quiescent current (Iq), which minimizes drain during standby or sleep modes. When paired with a microcontroller that spends most of its time in low-power mode, the MIC5265-2.9YD5 helps extend battery life significantly. However, ensure the enable pin is actively controlled to disable the regulator when not needed, as leakage from upstream circuitry or improper enable logic can negate the low Iq benefit. Also verify that the input source (e.g., Li-Max or coin cell) stays within the 5.5V max limit, especially during charging events.
What are the thermal risks when designing in the MIC5265-2.9YD5 in a densely packed TSOT-23-5 footprint with limited PCB copper for heat dissipation?
The MIC5265-2.9YD5 in the TSOT-23-5 package has limited thermal dissipation capability, so power dissipation must be carefully managed. The maximum junction temperature is 125°C, and with a typical thermal resistance (θJA) of ~200°C/W for this package, even 200mW of power loss (e.g., 1V dropout at 200mA) can raise the die temperature by 40°C above ambient. To mitigate thermal risk, minimize dropout voltage by ensuring input voltage is as close as feasible to 2.9V output—ideally ≤3.6V. Use at least 2–3 thermal vias under the ground pad (if present) and generous copper traces to improve heat spreading, especially in sealed or high-temperature environments.
Is the MIC5265-2.9YD5 a viable drop-in replacement for the TPS7201DCKR in low-noise sensor signal chains, and how does its PSRR compare at key frequencies?
While the MIC5265-2.9YD5 offers respectable PSRR—64dB at 1kHz and 62dB at 100Hz—it is not a direct replacement for the TPS7201DCKR, which is specifically optimized for low-noise applications (with noise as low as 30µVrms). The MIC5265-2.9YD5 lacks specified output noise performance, making it less ideal for precision analog or RF front-ends where clean power is critical. If substituting, add external RC filtering or a ferrite bead LC stage at the output to suppress switching noise from upstream DC-DC converters. Also confirm enable pin compatibility, as the MIC5265-2.9YD5 enables high while TPS7201 may differ in logic threshold.
How does the under-voltage lockout (UVLO) behavior of the MIC5265-2.9YD5 affect system startup in applications powered by slowly ramping or unstable sources like energy harvesters?
The MIC5265-2.9YD5 includes built-in UVLO that prevents regulator turn-on until the input voltage exceeds a reliable threshold, typically ensuring stable startup. However, in energy harvesting applications with slow-ramping supplies (e.g., solar or piezoelectric), the gradual voltage rise may cause prolonged hysteresis or oscillation during startup if the input stalls near the UVLO threshold. To mitigate this, provide a small hold-up capacitor (e.g., 1–2.2µF ceramic) at the input and ensure the source can deliver the initial surge current required during turn-on. Verify that the harvester’s minimum effective voltage exceeds the MIC5265-2.9YD5’s UVLO turn-on point across temperature extremes.
Given that the MIC5265-2.9YD5 is marked as obsolete, what are the recommended long-term design strategies and cross-reference alternatives for new designs or end-of-life mitigation?
Due to its obsolete status, the MIC5265-2.9YD5 should not be used in new production designs unless secure long-term inventory or second-source channels are established. For design-in or replacement, consider modern alternatives like the TPS7A0529DBVR (2.9V, 200mA, 1.3µA Iq) or MCP1703-2.9V (2.9V, 250mA, 4.5µA Iq), both in SOT-23-5 and available in active production. These offer comparable dropout and quiescent current with improved availability and documentation. When migrating, confirm compatibility in enable logic, output accuracy (±2% vs ±3%), and transient response under load switching. Redesign with extra input filtering if the alternative has lower PSRR at sub-1kHz frequencies.
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MIC5265-2.9YD5 CAD Models
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