LM34927SDX/NOPB
Conv DC-DC 7.5V to 100V Synchronous Step Down Dual-Out 1.225V to 90V 0.6A/0.6A 8-Pin WSON EP T/R
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Part Number : LM34927SDX/NOPB
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Package/Case : WSON-8
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Brands : TI
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Components Categories : Voltage Regulators - DC DC Switching Regulators
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Datesheet : LM34927SDX/NOPB DataSheet (PDF)
Overview of LM34927SDX/NOPB
The LM34927 regulator features all of the functions needed to implement a low-cost, efficient, isolated bias regulator. This high-voltage regulator contains 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 employed in the LM34927 device requires no loop compensation and provides excellent transient response. The regulator operates with an on-time that is inversely proportional to the input voltage. This feature allows the operating frequency to remain relatively constant. An intelligent peak current limit is implemented with integrated sense circuit. Other features include a programmable input undervoltage comparator to inhibit operation during low-voltage conditions. Protection features include thermal shutdown and VCC undervoltage lockout (UVLO). The LM34927 device is offered in WSON-8 and SO PowerPAD-8 plastic packages.
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
- Packages:
- 8-pin WSON
- 8-pin SO PowerPAD™
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Device type | Converters | Topology | Flybuck |
Vin (min) (V) | 9 | Vin (max) (V) | 100 |
Vout (min) (V) | 1.225 | Vout (max) (V) | 90 |
Iout (max) (A) | 0.6 | Features | Enable, UVLO adjustable |
Operating temperature range (°C) | -40 to 125 | Regulated outputs (#) | 1 |
Control mode | Constant on-time (COT) | Rating | Catalog |
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