LM34927SD Integrated Circuit Chip Isolated Bias Regulator 600mA Secondary Side Bias Regulator
Product Description
The LM34927SD regulator provides all necessary functions for implementing a low-cost, efficient, isolated bias regulator. This high-voltage regulator integrates two 100-V N-channel MOSFET switches—a high-side buck switch and a low-side synchronous switch.
The Constant On-Time (COT) control scheme used in the LM34927SD eliminates the need for loop compensation while delivering excellent transient response. The regulator operates with an input voltage-dependent on-time, maintaining a relatively constant operating frequency.
Specifications
| Function |
Step-Down |
| Output Configuration |
Positive, Isolation Capable |
| Topology |
Buck |
| Output Type |
Adjustable |
| Number of Outputs |
1 |
| Voltage - Input (Min) |
7.5V |
| Voltage - Input (Max) |
100V |
| Voltage - Output (Min/Fixed) |
1.225V |
| Voltage - Output (Max) |
100V |
| Current - Output |
600mA |
| Frequency - Switching |
Adj to 1MHz |
| Synchronous Rectifier |
Yes |
| Operating Temperature |
-40°C ~ 125°C (TJ) |
| Mounting Type |
Surface Mount |
| Package / Case |
8-WDFN Exposed Pad |
| Supplier Device Package |
8-WSON (4x4) |
Key Features
- Wide 7.5-V to 100-V Input Range
- Integrated 600-mA High-Side and Low-Side Switches
- No Schottky Required
- Constant On-Time Control
- No Loop Compensation Required
- Ultra-Fast Transient Response
- Nearly Constant Operating Frequency
- Intelligent Peak Current Limit
- Adjustable Output Voltage From 1.225 V
- Precision 2% Feedback Reference
- Frequency Adjustable to 1 MHz
- Adjustable Undervoltage Lockout (UVLO)
- Remote Shutdown
- Thermal Shutdown
Applications
- Isolated Telecom Bias Supply
- Isolated Automotive and Industrial Electronics
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Frequently Asked Questions
Q. Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q: Which Certificates do you have?
A: We are ISO 9001:2015 Certified Company and member of ERAI.
Q: Can you support small quantity order or sample? Is the sample free?
A: Yes, we support sample order and small order. Sample cost is different according to your order or project.
Q: How to ship my order? Is it safe?
A: We use express to ship, such as DHL, Fedex, UPS, TNT, EMS. We can also use your suggested forwarder. Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q: What about the lead time?
A: We can ship stock parts within 5 working days. If without stock, we will confirm lead time for you based on your order quantity.
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