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TEXAS INSTRUMENTS LM5119PSQE/NOPB
DC/DC Controller, Current Mode, 5.5V to 65V, 2 Outputs, Synchronous Buck, 750kHz, LLP-32
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM5119PSQE/NOPB
- Order Code:
- 3008664
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Product Overview
The LM5119PSQE/NOPB is a dual synchronous Buck Controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current-mode control utilizing an emulated current ramp. current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 to 750kHz. The LM5119 drives external high-side and low-side NMOS power switches with adaptive dead-time control. User-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency.
- Easily configurable for dual outputs or interleaved single output
- Robust 3.3A Peak gate drive
- Programmable output from 0.8V
- Precision 1.5% Voltage reference
- Programmable current limit
- Hiccup mode overload protection
- Programmable soft-start
- Programmable line under-voltage lockout
- Automatic switch-over to external bias supply
- Channel2 enable logic input
- Thermal shutdown
- Green product and no Sb/Br
Applications
Power Management, Automotive, Industrial, Communications & Networking
Footnotes
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
Warnings
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
Product Information
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- :
- Current Mode Control
- :
- 5.5V
- :
- 65V
- :
- 2Outputs
- :
- 98%
- :
- LLP
- :
- 32Pins
- :
- 750kHz
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- Synchronous Buck (Step Down)
- :
- -40°C
- :
- 125°C
- :
- -
- :
- -
- :
- MSL 3 - 168 hours
Technical Documents (1)
Packaging type
Cut Tape
58 In stock Need more?
58 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 6/2/25
58 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥1,291.62
(
¥1,420.78
Inc. JCT)
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| 10+ | ¥1,039.26 (¥1,143.19) | ( ) |
| 25+ | ¥953.04 (¥1,048.34) | ( ) |
| 50+ | ¥905.24 (¥995.76) | ( ) |
| 100+ | ¥857.43 (¥943.17) | ( ) |
| 250+ | ¥839.01 (¥922.91) | ( ) |
| 500+ | ¥833.82 (¥917.20) | ( ) |
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