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Details for LM5005MH by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
V REG BUCK 2.5A 75V SMD TSSOP20
LM5005MH image

LM5005MH by Texas Instruments

V REG BUCK 2.5A 75V SMD TSSOP20
Features
80-ns Minimum PWM ON Time For Low VOUT
Auxiliary Bias Supply Option to VCC
Configurable Soft Start With Tracking
Cycle-by-Cycle Overcurrent Protection
Emulated Peak Current-Mode Control u2013 Ultra-Fast Line and Load Transient Response
High-Efficiency DC-DC Buck Converter u2013 Wide Input Voltage Range From 7 V to 75 V u2013 Adjustable Output Voltage as Low as 1.225 V u2013 Output Current as High as 2.5 A u2013 Junction Temperature Range u201340u00b0C to 125u00b0C
Integrated 75-V, 160-mu03a9 Buck MOSFET
Internal High-Voltage VCC Bias Supply Regulator
Master or Slave Frequency Synchronization Input
Meets EN55022 and CISPR 22 EMI Standards
Monotonic Start-up into Prebiased Output
Precision Standby and Shutdown Input u2013 Programmable Input UVLO With Hysteresis
Remote Shutdown and Standby Control
Switching Frequency From 50 kHz to 500 kHz
Thermal Shutdown Protection With Hysteresis
Thermally-Enhanced 20-Pin HTSSOP Package
VCC and Gate Drive UVLO Protection
u00b11.5% Feedback Voltage Accuracy
Part Information
LM5005MH image
RoHS Compliant
Description
The LM5005 high-voltage buck converter features all of the functions necessary to implement an efficient high-voltage switching regulator with a minimum number of external components. This easy-to-use converter operates over an input voltage range from 7 V to 75 V and delivers a maximum output current of 2.5 A. The control loop architecture is based upon current-mode control using an emulated current ramp for high noise immunity. Current-mode control provides inherent line feed-forward, cycle-by-cycle overcurrent protection and straightforward loop compensation. The use of an emulated control ramp reduces noise sensitivity of the PWM circuit, allowing reliable control of small duty cycles necessary in high input voltage applications. The switching frequency is resistor-programmable from 50 kHz to 500 kHz. To reduce EMI, an oscillator synchronization pin allows multiple LM5005 regulators to self-synchronize or be synchronized to an external clock signal. Additional protection features include configurable soft start, external power supply tracking, thermal shutdown with automatic recovery, and remote shutdown capability. The LM5005 is available in an 20-pin HTSSOP package with an exposed pad that is soldered to the PCB to achieve a low junction-to-board thermal impedance. To create a custom regulator design, use the LM5005 with WEBENCH® Power Designer.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
7V
Input Voltage Max:
75V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
HTSSOP
No. of Pins:
20Pins
Output Current:
2.5A
Output Voltage Min:
1.225V
Output Voltage Max:
70V
Switching Frequency:
500kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Max:
70V
Base Number:
5005
Frequency:
500kHz
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Voltage:
1.225V
Primary Input Voltage:
75V
Supply Voltage Min:
7V
Termination Type:
Surface Mount Device
Voltage Regulator Type:
Voltage Regulator
Alternate Descriptions
Conv DC-DC Single Inv/Step Down 7V to 75V 20-Pin TSSOP EP Rail Avnet Europe