LMZ14201TZ-ADJ/NOPB National Semiconductor, LMZ14201TZ-ADJ/NOPB Datasheet

IC BUCK SYNC ADJ 1A TO-PMOD-7

LMZ14201TZ-ADJ/NOPB

Manufacturer Part Number
LMZ14201TZ-ADJ/NOPB
Description
IC BUCK SYNC ADJ 1A TO-PMOD-7
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Point of Load (POL) Non-Isolated with UVLOr
Datasheet

Specifications of LMZ14201TZ-ADJ/NOPB

Output
0.8 ~ 6 V
Number Of Outputs
1
Power (watts)
6W
Mounting Type
Surface Mount
Voltage - Input
6 ~ 42 V
Package / Case
TO-PMOD-7, Power Module
1st Output
0.8 ~ 6 VDC @ 1A
Size / Dimension
0.40" L x 0.54" W x 0.18" H (10.16mm x 13.77mm x 4.57mm)
Power (watts) - Rated
6W
Operating Temperature
-40°C ~ 125°C
Efficiency
90%
Approvals
EN
Operating Temperature (max)
125C
Operating Temperature (min)
-40C
Pin Count
7
Mounting
Surface Mount
Case Length
10.16mm
Case Height
4.57mm
Screening Level
Automotive
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
Lead Free Status / Rohs Status
Compliant
Other names
LMZ14201TZ-ADJTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LMZ14201TZ-ADJ/NOPB
Manufacturer:
INFINEON
Quantity:
100
Part Number:
LMZ14201TZ-ADJ/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
LMZ14201TZ-ADJ/NOPB
0
© 2010 National Semiconductor Corporation
1A SIMPLE SWITCHER® Power Module with 42V Maximum
Input Voltage
Electrical Specifications
Key Features
Applications
6W maximum total output power
Up to 1A output current
Input voltage range 6V to 42V
Output voltage range 0.8V to 6V
Efficiency up to 90%
Integrated shielded inductor
Simple PCB layout
Flexible startup sequencing using external soft-start 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:
LMZ14203/2/1 (42V max 3A, 2A, 1A)
LMZ12003/2/1 (20V max 3A, 2A, 1A)
Fully enabled for Webench® Power Designer
Point of load conversions from 12V and 24V input rail
Time critical projects
Space constrained / high thermal requirement applications
Negative output voltage applications (See AN-2027)
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θ
Easy to use 7 pin package
JA
TO-PMOD 7 Pin Package
= 20°C/W, θ
RoHS Compliant
JC
= 1.9°C/W
301146
30114686
LMZ14201
Performance Benefits
System Performance
Operates at high ambient temperature with no thermal
derating
High efficiency reduces system heat generation
Low radiated emissions (EMI) complies with EN55022
class B standard
Low external component count
Radiated Emissions (EN 55022 Class B)
Efficiency V
Thermal derating curve
from Evaluation Board
V
IN
= 24V, V
IN
= 24V V
OUT
= 5.0V,
OUT
30114637
= 5.0V
30114636
30114639
June 10, 2010
www.national.com

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LMZ14201TZ-ADJ/NOPB Summary of contents

Page 1

... Point of load conversions from 12V and 24V input rail ■ Time critical projects ■ Space constrained / high thermal requirement applications ■ Negative output voltage applications (See AN-2027) © 2010 National Semiconductor Corporation LMZ14201 Performance Benefits ■ Operates at high ambient temperature with no thermal derating ■ ...

Page 2

... Simplified Application Schematic Connection Diagram Ordering Information Order Number LMZ14201TZ-ADJ LMZ14201TZX-ADJ LMZ14201TZE-ADJ Pin Descriptions Pin Name Description 1 VIN Supply input — Nominal operating range 42V . A small amount of internal capacitance is contained within the package assembly. Additional external input capacitance is required between this pin and exposed pad. ...

Page 3

Pin Name Description 6 FB Feedback — Internally connected to the regulation, over-voltage, and short-circuit comparators. The regulation reference point is 0.8V at this input pin. Connected the feedback resistor divider between the output and ground to set the output ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN, RON to GND EN, FB GND Junction Temperature Storage Temperature Range Electrical Characteristics junction temperature (T ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design or statistical J correlation ...

Page 5

Symbol Parameter ΔV Load Regulation /I O OUT η Efficiency Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is intended to be functional. ...

Page 6

Efficiency 24V Input @ 25°C Efficiency 36V Input @ 25°C Efficiency 42V Input @ 25°C www.national.com Dissipation 24V Input @ 25°C 30114626 Dissipation 36V Input @ 25°C 30114629 Dissipation 42V Input @ 25°C 30114650 6 30114627 30114630 30114651 ...

Page 7

Efficiency 6V Input @ 85°C 30114633 Efficiency 8V input 85°C 30114640 Efficiency 12V input@ 85°C 30114642 Dissipation 6V input @ 85°C Dissipation 8V input 85°C Dissipation 12V input @ 85°C 7 30114634 30114641 30114643 www.national.com ...

Page 8

Efficiency 24V input @ 85°C Efficiency 36V input @ 85°C Efficiency 42V Input @ 85°C www.national.com Dissipation 24V input @ 85°C 30114644 Dissipation 36V input @ 85°C 30114646 Dissipation 42V Input @ 85°C 30114652 8 30114645 30114647 30114653 ...

Page 9

Line and Load Regulation @ 25°C 30114648 Output Ripple 24V 3.3V 1A 200 MHz IN O 30114605 Thermal Derating V = 3.3V OUT 30114670 Line and Load Regulation @ 85°C Transient Response 24V 3.3V 0. Step ...

Page 10

Current Limit 3.3V Application Block Diagram COT Control Circuit Overview Constant On Time control is based on a comparator and an on-time one shot, with the output voltage feedback compared with an internal 0.8V reference. If the feedback voltage is ...

Page 11

This implements the feature of programmable under voltage lockout. This is often used in battery powered systems to prevent deep discharge of the system battery also useful in system designs for sequencing of output rails or to ...

Page 12

If Δ for a 24V input to 3.3V output application IN IN this equals 240 mV and f = 400 kHz. SW ≥ 3.3V/24V * (1– 3.3V/24V) / (400000 * 0.240 V) IN ...

Page 13

Given the typical thermal resistance from junction to case to be 1.9 °C/W. Use the 85°C power dissipation curves in the Typical Performance Characteristics section to estimate the P for the application being designed. In this application IC-LOSS it is ...

Page 14

Applications requiring maximum output current especially those at high input voltage may require application derating at elevated temperatures. ZERO COIL CURRENT DETECTION The current of the lower (synchronous) MOSFET is monitored by a zero coil current detection circuit which inhibits ...

Page 15

... Taiyo Yuden 0603 Vishay Dale 0603 Vishay Dale 0603 Vishay Dale 0603 Vishay Dale 0603 Vishay Dale 0603 TDK 0603 TDK — SOD-23 15 30114607 Manufacturer P/N LMZ14201TZ-ADJ UMK316B7105KL-T UMK325BJ106MM-T 'UMK316B7105KL-T JMK325BJ107MM-T CRCW06033K32FKEA CRCW06031K07FKEA CRCW060361k9FKEA CRCW060368k1FKEA CRCW060311k8FKEA C1608X7R1H223K C1608X7R1H223K Optional www.national.com ...

Page 16

FIGURE 1. Top View and Bottom View of Evaluation PCB www.national.com 16 30114616 30114617 ...

Page 17

Physical Dimensions inches (millimeters) unless otherwise noted 7-Lead TZA Package NS Package Number TZA07A 17 www.national.com ...

Page 18

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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