LMZ14201TZX

Part: LMZ14201 from Texas Instruments

Type: Power Module

Key Specs:

• Input Voltage Range: 6 V to 42 V
• Output Current: Up to 1 A
• Output Voltage Range: 0.8 V to 6 V
• Efficiency: Up to 90%
• Maximum Total Output Power: 6 W
• Junction Temperature Range: –40°C to 125°C

Features:

• Integrated Shielded Inductor
• Flexible Start-Up Sequencing Using External Soft- Time-Critical Projects 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
• No Thermal Derating
• High Efficiency Reduces System Heat
• Low External Component Count
• 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)
• Fully Enabled for WEBENCH® Power Designer
• Operates at High Ambient Temperature With Low Radiated Emissions (EMI) Tested With EN55022 Class B Standard

Applications:

• Point of Load Conversions From 12-V and 24-V Input Rail
• Simple PCB Layout
• Space Constrained and High Thermal Requirement Applications
• Negative Output Voltage Applications

Package:

• TO-PMOD (7): 10.16 mm x 9.85 mm

¹• Integrated Shielded Inductor • Point of Load Conversions From 12-V and 24-V

Support & Community

Tools & Software

The LMZ14201 SIMPLE SWITCHER® power module • Fast Transient Response for Powering FPGAs is an easy-to-use step-down DC-DC solution that can and ASICs drive up to 1-A load with exceptional power • Low Output Voltage Ripple conversion efficiency, line and load regulation, and • Pin-to-Pin Compatible Family: output accuracy. The LMZ14201 is available in an innovative package that enhances thermal – LMZ1420x (42 ^V Maximum ³ A, ² A, ¹ A) performance and allows for hand or machine

• Fully Enabled for WEBENCH® Power Designer The LMZ14201 can accept an input voltage rail • Electrical Specifications between 6 V and 42 V and deliver an adjustable and – 6-W Maximum Total Output Power highly accurate output voltage as low as 0.8 V. The LMZ14201 only requires three external resistors and – Up to 1-A Output Current four external capacitors to complete the power – Input Voltage Range 6 V to 42 V solution. The LMZ14201 is a reliable and robust – Output Voltage Range 0.8 V to 6 V design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, – Efficiency up to 90% short-circuit protection, output current limit, and • Performance Benefits allows start-up into a prebiased output. A single – Operates at High Ambient Temperature With resistor adjusts the switching frequency up to 1 MHz.

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LMZ14201	TO-PMOD (7)	10.16 mm x 9.85 mm

Generation	PART NUMBER	PACKAGE	BODY SIZE (NOM)
– Low Radiated Emissions (EMI) Tested With	LMZ14201	TO-PMOD (7)	10.16 mm × 9.85 mm

(2) Peak reflow temperature equals 245°C. See SNAA214 for more details.

Efficiency 12-V Input at 25°C

¹• Integrated Shielded Inductor • Point of Load Conversions From 12-V and 24-V

Support & Community

Tools & Software

The LMZ14201 SIMPLE SWITCHER® power module • Fast Transient Response for Powering FPGAs is an easy-to-use step-down DC-DC solution that can and ASICs drive up to 1-A load with exceptional power • Low Output Voltage Ripple conversion efficiency, line and load regulation, and • Pin-to-Pin Compatible Family: output accuracy. The LMZ14201 is available in an innovative package that enhances thermal – LMZ1420x (42 ^V Maximum ³ A, ² A, ¹ A) performance and allows for hand or machine

• Fully Enabled for WEBENCH® Power Designer The LMZ14201 can accept an input voltage rail • Electrical Specifications between 6 V and 42 V and deliver an adjustable and – 6-W Maximum Total Output Power highly accurate output voltage as low as 0.8 V. The LMZ14201 only requires three external resistors and – Up to 1-A Output Current four external capacitors to complete the power – Input Voltage Range 6 V to 42 V solution. The LMZ14201 is a reliable and robust – Output Voltage Range 0.8 V to 6 V design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, – Efficiency up to 90% short-circuit protection, output current limit, and • Performance Benefits allows start-up into a prebiased output. A single – Operates at High Ambient Temperature With resistor adjusts the switching frequency up to 1 MHz.

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LMZ14201	TO-PMOD (7)	10.16 mm x 9.85 mm

Generation	PART NUMBER	PACKAGE	BODY SIZE (NOM)
– Low Radiated Emissions (EMI) Tested With	LMZ14201	TO-PMOD (7)	10.16 mm × 9.85 mm

(2) Peak reflow temperature equals 245°C. See SNAA214 for more details.

Efficiency 12-V Input at 25°C

Pin Functions

• NO.
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• —

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

	PARAMETER		TEST CONDITIONS	MIN(1)	TYP(2)	MAX(1)	UNIT
SYSTEM PARAMETERS	ENABLE CONTROL(3)
VEN	EN threshold trip point	VEN rising	over the junction temperature (TJ ) range of –40°C to +125°C	1.10	1.18	1.25	V
VEN-HYS	EN threshold hysteresis	VEN falling	over the junction temperature (TJ ) range of –40°C to +125°C		90		mV
SOFT-START
ISS	SS source current	VSS = 0 V	over the junction temperature (TJ ) range of –40°C to +125°C	5	8	11	μA
ISS-DIS	SS discharge current				-200		μA
CURRENT LIMIT
ICL	Current limit threshold	DC average			1.95
			over the junction temperature (TJ ) range of –40°C to +125°C	1.4		3	A
ON/OFF TIMER
tON-MIN	ON timer minimum pulse width				150		ns
tOFF	OFF timer pulse width				260		ns

(2) Typical numbers are at 25°C and represent the most likely parametric norm.

(3) EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2024 and layout for information on device under test.

Electrical Characteristics (continued)

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

	PARAMETER		TEST CONDITIONS	MIN(1)	TYP(2)	MAX(1)	UNIT
REGULATION AND OVERVOLTAGE COMPARATOR
VFB	In-regulation feedback voltage	VSS >+ 0.8 V TJ = -40°C to 125°C IO = 1 A			0.798		V
			over the junction temperature (TJ) range of –40°C to +125°C	.777		0.818	V
		VSS > +0.8 V TJ = 25°C IO = 10 mA		0.786	0.802	0.818	V
VFB-OV	Feedback overvoltage protection threshold				0.92		V
IFB	Feedback input bias current				5		nA
IQ	Non Switching Input Current	VFB= 0.86 V			1		mA
ISD	Shut Down Quiescent Current	VEN= 0 V			25		μA
THERMAL CHARACTERISTICS
TSD	Thermal Shutdown	Rising			165		°C
TSD-HYST	Thermal shutdown hysteresis	Falling			15		°C
PERFORMANCE PARAMETERS
ΔVO	Output Voltage Ripple				8		mV PP
ΔVO/ΔVIN	Line Regulation	VIN = 12 V to 42 V, IO= 1 A			.01%
ΔVO/IOUT	Load Regulation	VIN = 24 V			1.5		mV/A
η	Efficiency	VIN = 24 V VO = 3.3 V IO = 1 A			92%

SNVS649I –JANUARY 2010–REVISED OCTOBER 2015 www.ti.com

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

	MIN	MAX	UNIT
VIN, RON to GND	–0.3	43.5	V
EN, FB, SS to GND	–0.3	7	V
Junction Temperature		150	°C
Storage Temperature	–65	150	°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications.

(3) For soldering specifications, see product folder at www.ti.com and SNOA549.

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

	MIN	MAX	UNIT
VIN	6	42	V
EN	0	6.5	V
Operation Junction Temperature	-40	125	°C

(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Recommended Operating Ratings are conditions under which operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.

THERMAL METRIC(1)			LMZ14201
			NDW (TO-PMOD)	UNIT
RθJA	Junction-to-ambient thermal resistance	4 layer JEDEC Printed Circuit Board, 100 vias, No air flow	19.3	°C/W
		2 layer JEDEC Printed Circuit Board, No air flow	21.5	°C/W
RθJC(top)	Junction-to-case (top) thermal resistance		1.9	°C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.