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MIC39152WD-TR
Microchip Technology
IC REG LIN POS ADJ 1.5A TO252-5
3514 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Adjustable 1 Output 1.5A TO-252-5
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5.0 / 5.0
- (84 Ratings)
MIC39152WD-TR
Product Overview
1321054
DiGi Electronics Part Number
MIC39152WD-TR-DGManufacturer
Microchip Technology
MIC39152WD-TR
Description
IC REG LIN POS ADJ 1.5A TO252-5Inventory
3514 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Adjustable 1 Output 1.5A TO-252-5
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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MIC39152WD-TR Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Output Configuration
Positive
Output Type
Adjustable
Number of Regulators
1
Voltage - Input (Max)
16V
Voltage - Output (Min/Fixed)
1.24V
Voltage - Output (Max)
15.5V
Voltage Dropout (Max)
0.5V @ 1.5A
Current - Output
1.5A
PSRR
-
Control Features
Enable
Protection Features
Over Current, Over Temperature, Reverse Polarity
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-252-6, DPAK (5 Leads + Tab)
Supplier Device Package
TO-252-5
Base Product Number
MIC39152
Datasheet & Documents
HTML Datasheet
MIC39152WD-TR-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
576-3615-2
MIC39152WDTR
576-3615-1
MIC39152WD TR
576-3615-6
Standard Package
2,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
배송 일정이 정확해서 신뢰할 수 있는 회사라고 느꼈어요.
Dec 02, 2025
Un lieu où l’on se sent bien : prix abordables et service amical, ce qui fait toute la différence.
Dec 02, 2025
Fast shipping and attentive after-sales support make them a reliable choice.
Dec 02, 2025
Packaging was thoughtfully designed to prevent any mishaps.
Dec 02, 2025
The quick response from the website made the entire process enjoyable.
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Frequently Asked Questions (FAQ)
How do I ensure stable operation of the MIC39152WD-TR when using it in a high-noise industrial environment with long input power traces?
To maintain stability and minimize noise coupling in high-noise environments, place a low-ESR ceramic capacitor (≥10µF, X7R or better) as close as possible to the input pin of the MIC39152WD-TR, and use a small 1µF ceramic capacitor directly at the output. Avoid routing input traces near high-current switching paths. Additionally, include a reverse-biased Schottky diode from input to ground to protect against inductive kickback, and ensure the ground plane is solid and connected directly to the tab of the TO-252-5 package to reduce ground impedance and thermal resistance.
Can the MIC39152WD-TR safely replace an LM317 in a 12V-to-5V, 1A design without redesigning the feedback network?
No, direct replacement is not recommended without modifying the feedback network. While both are adjustable linear regulators, the MIC39152WD-TR has a reference voltage of 1.24V (vs. 1.25V for LM317) and different internal compensation. You must recalculate the resistor divider using R2 = R1 × (Vout/1.24 – 1). For 5V output, use R1=240Ω and R2≈720Ω (standard 680Ω + 39Ω in series). Also verify dropout: MIC39152WD-TR requires only 0.5V at 1.5A, making it more efficient than LM317 in this scenario, but ensure your PCB layout supports its surface-mount TO-252-5 package and thermal requirements.
What are the key thermal design risks when using the MIC39152WD-TR in a compact enclosure with 14V input and 1.5A load at 3.3V output?
At 14V input and 3.3V/1.5A output, the MIC39152WD-TR dissipates (14V – 3.3V) × 1.5A = 16.05W, which exceeds the safe operating limit for natural convection in most compact enclosures. Without a heatsink, the junction temperature can exceed 150°C even with a good PCB copper pour. Mitigate this by attaching the device’s tab to a ≥2 in² copper area on a 2-oz PCB, or use an external heatsink. Consider switching to a buck converter (e.g., MCP1603) if thermal constraints cannot be met—linear regulation at this differential is inefficient and risky for long-term reliability.
Is the MIC39152WD-TR a suitable drop-in replacement for the older MIC29152 in a legacy 5V rail design, and what layout changes are needed?
The MIC39152WD-TR is functionally compatible with the MIC29152 in terms of pinout, voltage range, and current capability, but it has a lower dropout voltage (0.5V vs. ~0.6V) and improved thermal performance. However, the MIC39152WD-TR is in a TO-252-5 package (5 leads + tab), while the MIC29152 often used TO-263. Verify PCB pad compatibility—adjust solder mask and thermal pad size if needed. Also, the MIC39152WD-TR has enhanced reverse polarity protection, but ensure your input capacitor placement matches its lower ESR requirements to avoid oscillation. Re-test transient response under full load after replacement.
How does the enable pin on the MIC39152WD-TR behave under slow-rising or noisy control signals, and what precautions should I take when interfacing with a microcontroller?
The enable pin on the MIC39152WD-TR has a typical threshold of ~1.2V but lacks hysteresis, making it susceptible to false triggering from slow-rising or noisy digital signals. When driven by a microcontroller, add a 10kΩ pull-down resistor to ensure a clean low state during power-up, and consider a small RC filter (e.g., 1kΩ + 100nF) if the control line runs near noisy traces. For systems with brownout concerns, use a supervisor IC to gate the enable signal. Never leave the pin floating—this can cause partial turn-on, leading to excessive power dissipation and potential damage to the regulator or downstream circuitry.
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MIC39152WD-TR CAD Models
Microchip Technology MIC39152WD-TR PCB symbols & footprints
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