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Details for LM5009SDC/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
IC DC/DC CONVERTER POWERWISE
LM5009SDC/NOPB image

LM5009SDC/NOPB by Texas Instruments

IC DC/DC CONVERTER POWERWISE
Features
150-mA Output Current Capability
2% Accurate 2.5-V Feedback From u201340u00b0C to +125u00b0C
8-Pin VSSOP and Thermally-Enhanced 8-Pin
External Shutdown Control
Highly Efficient Operation
Integrated N-Channel MOSFET
Intelligent Current Limit Protection
Internal Startup Regulator
No Loop Compensation Required
Switching Frequency Can Exceed 600 kHz
Thermal Shutdown
Ultra-Fast Transient Response
VIN Feed-Forward Provides Constant Operating Frequency
Part Information
LM5009SDC/NOPB image
RoHS Compliant
Description
The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost, efficient, buck bias regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The LM5009 is a well-suited alternative to a high-voltage monolithic or discrete linear solution where the power loss becomes unacceptable. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum foldback. Other features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
9.5V
Input Voltage Max:
95V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
WSON
No. of Pins:
8Pins
Output Current:
150mA
Output Voltage Min:
2.5V
Output Voltage Max:
85V
Switching Frequency:
600kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
2%
Adjustable Output Voltage Min:
2.5V
Base Number:
5009
Frequency:
600kHz
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Voltage:
85V
Primary Input Voltage:
95V
Supply Voltage Min:
9.5V
Termination Type:
Surface Mount Device
Voltage Regulator Type:
Step Down (Buck)
Alternate Descriptions
DC-DC Converter Step-Down 9.5-95V LLP8 RS Components
Conv DC-DC Single Step Down 9.5V to 95V 8-Pin LLP EP T/R Avnet America
Conv DC-DC Single Step Down 9.5V to 95V 8-Pin LLP EP T/R Avnet Europe