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LP3852EMP-1.8
Texas Instruments
IC REG LINEAR 1.8V 1.5A SOT223-5
2292 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A SOT-223-5
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5.0 / 5.0
- (160 Ratings)
LP3852EMP-1.8
Product Overview
1340104
DiGi Electronics Part Number
LP3852EMP-1.8-DGManufacturer
Texas Instruments
LP3852EMP-1.8
Description
IC REG LINEAR 1.8V 1.5A SOT223-5Inventory
2292 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A SOT-223-5
Quantity
Minimum 1
Minimum 1
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Warranty & Returns
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LP3852EMP-1.8 Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
Tape & Reel (TR)
Series
-
Product Status
Last Time Buy
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
7V
Voltage - Output (Min/Fixed)
1.8V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.43V @ 1.5A
Current - Output
1.5A
Current - Quiescent (Iq)
3 mA
Current - Supply (Max)
10 mA
PSRR
73dB ~ 57dB (120Hz)
Control Features
Enable
Protection Features
Over Current, Over Temperature, Short Circuit
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-261-5, TO-261AB
Supplier Device Package
SOT-223-5
Base Product Number
LP3852
Datasheet & Documents
HTML Datasheet
LP3852EMP-1.8-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
Other Names
LP3852EMP18
*LP3852EMP-1.8
LP3852EMP-1.8TR
LP3852EMP-1.8DKR
LP3852EMP-1.8CT
2156-LP3852EMP-1.8
TEXTISLP3852EMP-1.8
Standard Package
1,000
Alternative Parts
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MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Product 지원뿐 아니라 추가 요청사항도 적극적으로 수용해주셔서 매우 감사했습니다.
грудня 02, 2025
Schneller Versand und freundliche Beratung, alles top!
грудня 02, 2025
Their dedication to quality and customer satisfaction keeps me coming back.
грудня 02, 2025
Their packaging is consistently thorough, reflecting their focus on quality control.
грудня 02, 2025
They provide durable and cost-effective solutions for everyday needs.
грудня 02, 2025
Post-sale support includes comprehensive tutorials and remote assistance.
грудня 02, 2025
DiGi Electronics’ responsiveness after sales helps us maintain high customer satisfaction levels.
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Frequently Asked Questions (FAQ)
What are the key thermal design considerations when using the LP3852EMP-1.8 in high-ambient-temperature environments?
When using the LP3852EMP-1.8 in ambient temperatures near 125°C, thermal management is critical due to power dissipation from dropout losses. At 1.5A load and a 7V-to-1.8V drop, power dissipation can reach ~7.8W. Since the LP3852EMP-1.8 is in a SOT-223-5 package with typical θJA ≈ 50°C/W, this could result in junction temperatures exceeding safe limits. To mitigate risk, ensure sufficient PCB copper area for heatsinking (preferably ≥1 square inch of solid copper), use thermal vias, and consider derating current above 85°C ambient. Monitor TJ via thermal simulation or prototyping under worst-case load and input conditions.
Can the LP3852EMP-1.8 be safely pin-to-pin replaced with newer alternatives like LP3875EMP-1.8/NOPB in an existing design?
While the LP3852EMP-1.8 and LP3875EMP-1.8/NOPB are both SOT-223-5 fixed 1.8V LDOs, they are not fully pin-compatible. The LP3875 has different enable logic timing and may have altered control pin behavior. Replacing LP3852EMP-1.8 with LP3875EMP-1.8/NOPB without reviewing enable circuitry and transient response risks instability or startup failure. For safe replacement, confirm pinout alignment, verify enable pin compatibility, and revalidate thermal and load transient performance. Consider redesign if timing specs or quiescent current are critical.
How does dropout voltage at 1.5A impact input voltage headroom for the LP3852EMP-1.8 in low-margin power systems?
The LP3852EMP-1.8 has a maximum dropout voltage of 0.43V at 1.5A, meaning the input voltage must stay above 2.23V (1.8V + 0.43V) to maintain regulation. In battery-powered or low-headroom systems where Vin may dip near 2.3V, this creates a risk of premature regulator dropout and output instability. Designers should ensure the input supply remains above 2.5V under full load to provide margin. Consider using the LP3852EMP-1.8 only when stable input sources (≥3V typical) are available, or evaluate ultra-low-dropout alternatives if operating below 2.5V.
What design risks arise from the LP3852EMP-1.8 being marked as Last Time Buy, and how should long-term production be addressed?
With the LP3852EMP-1.8 listed as Last Time Buy, continued use introduces supply chain and obsolescence risks. For long-term production, securing lifetime buys with certified distributors is essential, but redesign should be planned. Evaluate direct upgrades like LP3875EMP-1.8/NOPB or LP3965EMP-1.8/NOPB, though compatibility must be verified. Alternative LDOs with lower dropout, better PSRR, or improved thermal performance may require PCB modifications. Start migration planning early and perform full validation, especially under thermal and load dynamics, to ensure reliable replacement.
When integrating the LP3852EMP-1.8, what output capacitor selection errors should be avoided to ensure stability and transient response?
The LP3852EMP-1.8 requires a minimum 10μF output capacitance with sufficient ESR (typically 50–100 mΩ) for stability. Using ceramic capacitors alone risks instability due to very low ESR; this can lead to oscillation under load transients. To safely use ceramic caps, ensure they are paralleled with a small ESR resistor or select a tantalum or polymer capacitor meeting the ESR requirement. Also verify capacitor performance at temperature extremes and voltage bias. Always simulate or probe step-load response during validation to catch ringing or overshoot caused by improper output capacitance selection.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LP3852EMP-1.8 CAD Models
Texas Instruments LP3852EMP-1.8 PCB symbols & footprints
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