LMZ14201TZX

Part: LMZ14201 — Texas Instruments

Type: Step-Down DC-DC Power Module

Description: An easy-to-use step-down DC-DC power module that can drive up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy, accepting an input voltage rail between 6 V and 42 V and delivering an adjustable output voltage as low as 0.8 V.

Operating Conditions:

• Supply voltage: 6 V to 42 V
• Operating junction temperature: -40 °C to 125 °C
• Max output current: 1 A
• Output voltage range: 0.8 V to 6 V

Absolute Maximum Ratings:

• Max supply voltage (VIN, RON to GND): 43.5 V
• Max junction temperature: 150 °C
• Max storage temperature: 150 °C

Key Specs:

• EN threshold trip point (V EN rising): 1.18 V (typ)
• SS source current (V SS = 0 V): 8 μA (typ)
• Current limit threshold (DC average): 1.95 A (typ)
• In-regulation feedback voltage (T J = 25°C, I O = 10 mA): 0.802 V (typ)
• Feedback overvoltage protection threshold: 0.92 V (typ)
• Non Switching Input Current (V FB = 0.86 V): 1 mA (typ)
• Output Voltage Ripple: 8 mV PP (typ)
• Line Regulation (V IN = 12 V to 42 V, I O = 1 A): 0.01% (typ)

Features:

• Integrated Shielded Inductor
• Simple PCB Layout
• Flexible Start-Up Sequencing Using External Soft-Start and Precision Enable
• Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit
• Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
• Fast Transient Response for Powering FPGAs and ASICs
• Low Output Voltage Ripple
• Pin-to-Pin Compatible Family: LMZ1420x (42 V Maximum 3 A, 2 A, 1 A), LMZ1200x (20 V Maximum 3 A, 2 A, 1 A)
• Efficiency up to 90%
• Low Radiated Emissions (EMI) Tested With EN55022 Class B Standard
• Low External Component Count

Applications:

• Point of Load Conversions From 12-V and 24-V Input Rail
• Time-Critical Projects
• Space Constrained and High Thermal Requirement Applications
• Negative Output Voltage Applications

Package:

• TO-PMOD (7 pins) - 10.16 mm × 9.85 mm

• 1 · Integrated Shielded Inductor
• Simple PCB Layout
• Flexible Start-Up Sequencing Using External SoftStart and Precision Enable
• Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit
• -40°C to 125°C Junction Temperature Range
• Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
• Fast Transient Response for Powering FPGAs and ASICs
• Low Output Voltage Ripple
• Pin-to-Pin Compatible Family:
• -LMZ1420x (42 V Maximum 3 A, 2 A, 1 A)
• -LMZ1200x (20 V Maximum 3 A, 2 A, 1 A)
• Fully Enabled for WEBENCH ® Power Designer
• Electrical Specifications
• -6-W Maximum Total Output Power
• -Up to 1-A Output Current
• -Input Voltage Range 6 V to 42 V
• -Output Voltage Range 0.8 V to 6 V
• -Efficiency up to 90%
• Performance Benefits
• -Operates at High Ambient Temperature With No Thermal Derating
• -High Efficiency Reduces System Heat Generation
• -Low Radiated Emissions (EMI) Tested With EN55022 Class B Standard
• -Low External Component Count

• Point of Load Conversions From 12-V and 24-V Input Rail
• Time-Critical Projects
• Space Constrained and High Thermal Requirement Applications
• Negative Output Voltage Applications (See AN-2027) SNVA425

Limits are for T J = 25°C only unless otherwise noted. Minimum and Maximum limits are ensured through test, design or statistical correlation. Typical values represent the most likely parametric norm at T J = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 24 V, Vout = 3.3 V

over operating free-air temperature range (unless otherwise noted) (1)(2)(3)

over operating free-air temperature range (unless otherwise noted) (1)

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