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LM2775DSGT
Texas Instruments
IC REG CHRG PUMP 5V 200MA 8WSON
158924 Pcs New Original In Stock
Charge Pump Switching Regulator IC Positive Fixed 5V 1 Output 200mA 8-WFDFN Exposed Pad
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5.0 / 5.0
- (73 Ratings)
LM2775DSGT
Product Overview
1288460
DiGi Electronics Part Number
LM2775DSGT-DGManufacturer
Texas Instruments
LM2775DSGT
Description
IC REG CHRG PUMP 5V 200MA 8WSONInventory
158924 Pcs New Original In Stock
Charge Pump Switching Regulator IC Positive Fixed 5V 1 Output 200mA 8-WFDFN Exposed Pad
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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LM2775DSGT Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Function
Step-Up
Output Configuration
Positive
Topology
Charge Pump
Output Type
Fixed
Number of Outputs
1
Voltage - Input (Min)
2.7V
Voltage - Input (Max)
5.5V
Voltage - Output (Min/Fixed)
5V
Voltage - Output (Max)
-
Current - Output
200mA
Frequency - Switching
2MHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
8-WFDFN Exposed Pad
Supplier Device Package
8-WSON (2x2)
Base Product Number
LM2775
Datasheet & Documents
Manufacturer Product Page
LM2775DSGT Specifications
HTML Datasheet
LM2775DSGT-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
296-42149-1
296-42149-2
-296-42149-1-DG
296-42149-6
Standard Package
250
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
가격도 착하고 서비스도 친절해서 항상 만족스럽습니다.
de desembre 02, 2025
Their quick dispatch means I can rely on them for urgent needs without any hassle.
de desembre 02, 2025
DiGi Electronics consistently ensures that their packaging is secure, preventing any damage during transit.
de desembre 02, 2025
We are very satisfied with their fast delivery times and attentive after-sales service.
de desembre 02, 2025
I trust DiGi Electronics because of their unbeatable prices and punctual delivery.
de desembre 02, 2025
The prompt shipping process makes my life so much easier.
de desembre 02, 2025
Their turnaround time from order to delivery is consistently impressive, making them a trusted supplier.
de desembre 02, 2025
The checkout process accepts multiple payment methods, offering flexibility.
de desembre 02, 2025
Their support team is knowledgeable, friendly, and always eager to help.
de desembre 02, 2025
The quality of their electronic components is outstanding; they perform flawlessly in my projects.
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Frequently Asked Questions (FAQ)
What are the key design risks when using the LM2775DSGT in a battery-powered IoT device with intermittent 200mA load spikes?
The LM2775DSGT’s 2MHz switching frequency helps minimize passive component size but increases sensitivity to PCB layout parasitics—poor grounding or long traces to the flying capacitors can cause voltage overshoot or instability during fast load transients. Since it lacks synchronous rectification, efficiency drops significantly near light loads (<10mA), which hurts battery life in sleep-mode-dominated applications. Always place the 1µF flying capacitors within 2mm of the C1/C2 pins and use a solid ground plane under the exposed pad to mitigate noise and thermal stress.
Can the LM2775DSGT reliably replace a linear regulator like the MCP1700-5002E in a 3.3V-to-5V boost application for sensor power?
No—the LM2775DSGT is a charge pump that requires an input between 2.7V and 5.5V and outputs a fixed 5V, so it cannot accept 3.3V input and produce 5V unless you're stepping up from a lower voltage (e.g., 2.7–3.6V Li-ion). Even then, unlike the MCP1700 (a low-dropout linear regulator), the LM2775DSGT introduces switching noise that may interfere with sensitive analog sensors. If your system already has 3.3V rails and needs clean 5V, consider a low-noise LDO post-regulator or a dedicated boost converter like the TPS61022 instead of direct replacement.
How does the LM2775DSGT compare to the MAX1595EUA+ for generating 5V from a single-cell Li-ion battery in space-constrained designs?
The LM2775DSGT offers higher switching frequency (2MHz vs. 1.5MHz on the MAX1595EUA+) and smaller total solution size due to its 2mm×2mm WSON package and reduced external component count—ideal for ultra-compact PCBs. However, the MAX1595EUA+ supports true shutdown (output disconnect) and has better transient response under dynamic loads. If your design prioritizes minimal footprint and accepts slightly higher output ripple, the LM2775DSGT is superior; if load isolation or tighter regulation under varying current is critical, the MAX1595 may be safer despite larger area.
What thermal and reliability concerns should I evaluate when operating the LM2775DSGT at 200mA continuous output near its -40°C to 85°C rating?
At 200mA full load, the LM2775DSGT dissipates approximately 200mW (assuming ~80% efficiency), which can cause localized heating—especially problematic in enclosed or high-ambient-temperature environments. The exposed thermal pad must be soldered to a sufficiently sized copper pour (≥40mm² recommended) to avoid thermal throttling or premature aging. Additionally, repeated thermal cycling near -40°C can stress the ceramic flying capacitors due to CTE mismatch; use X7R or better dielectrics rated for full temperature range. Monitor junction temperature via thermal modeling, as sustained operation above 100°C TJ accelerates electromigration in the die.
Is the LM2775DSGT suitable for powering noise-sensitive RF modules like the ESP32 in a compact wearable design, and what filtering is needed?
The LM2775DSGT’s 2MHz switching frequency falls within the sensitive range of many RF receivers (e.g., Wi-Fi/Bluetooth in ESP32), risking conducted and radiated emissions that degrade SNR. While its integrated control loop reduces sub-harmonic noise, you must add a π-filter (10Ω + 1µF + 10µF) at the output and guard-ring the switching nodes. Alternatively, synchronize system timing so RF activity avoids the 2MHz harmonic bands. For mission-critical RF links, consider a low-noise boost converter like the TPS61094 with power-path management, but if size is paramount and you implement proper filtering, the LM2775DSGT can work with careful layout and shielding.
Quality Assurance (QC)
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LM2775DSGT CAD Models
Texas Instruments LM2775DSGT PCB symbols & footprints
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