Product Summary

The LM5033MM/NOPB is a Step Down Switching Regulator. It features all of the functions needed to implement low cost, efficient, Buck bias regulators. This high voltage regulator contains an 80 V, 0.7A N-Channel Buck Switch. The applications of the LM5033MM/NOPB are (1)Non-Isolated Buck Regulator; (2)Secondary High Voltage Post Regulator; (3)+42V Automotive Systems.

Parametrics

LM5033MM/NOPB absolute maximum ratings: (1)VIN to GND: 80V; (2)BST to GND: 94V; (3)SW to GND (Steady State): -1V; (4)ESD Rating: 200V; (5)BST to VCC: 80V; (6)BST to SW: 14V; (7)VCC to GND: 14V; (8)All Other Inputs to GND: -0.3 to 7V; (9)Lead Temperature (Soldering 4 sec): 260℃; (10)Storage Temperature Range: -55 to +150℃.

Features

LM5033MM/NOPB features: (1)Integrated 80V, 0.7A N-Channel Buck Switch; (2)Internal HV Vcc Regulator; (3)No Control Loop Compensation Required; (4)Ultra-Fast Transient Response; (5)On Time Varies Inversely with Line Voltage; (6)Operating Frequency Nearly Constant with Varying Line Voltage; (7)Adjustable Output Voltage; (8)Highly Efficient Operation; (9)Precision Reference; (10)Low Bias Current; (11)Intelligent Current Limit Protection; (12)Thermal Shutdown; (13)External Shutdown Control.

Diagrams

LM5033MM/NOPB block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM5033MM/NOPB
LM5033MM/NOPB

National Semiconductor (TI)

Voltage Mode PWM Controllers

Data Sheet

0-1: $1.15
1-10: $1.03
10-25: $0.92
25-100: $0.62
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM50
LM50

Other


Data Sheet

Negotiable 
LM5000-3MTC
LM5000-3MTC

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-184: $1.31
184-276: $1.28
276-552: $1.26
552-828: $1.24
LM5000-3MTC/NOPB
LM5000-3MTC/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers High Vltg Switch Mode Reg

Data Sheet

0-1: $2.43
1-10: $2.18
10-25: $1.94
25-50: $1.83
LM5000-3MTCX
LM5000-3MTCX

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-2500: $1.21
LM5000-3MTCX/NOPB
LM5000-3MTCX/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-1: $2.43
1-10: $2.18
10-25: $1.94
25-50: $1.83
LM5000EP
LM5000EP

Other


Data Sheet

Negotiable