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LMZ12002
SNVS650H – JANUARY 2010 – REVISED AUGUST 2015
www.ti.com
6.3 Recommended Operating Conditions
(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
4.5
20
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. Operating Ratings are conditions under which
operation of the device is intended to be functional. For specifications and test conditions, see the Electrical Characteristics.
6.4 Thermal Information
LMZ12002
THERMAL METRIC(1)
NDW
UNIT
7 PINS
RθJA
4-layer JEDEC Printed-Circuit-Board, 100
19.3
vias, No air flow
Junction-to-ambient thermal resistance (2)
°C/W
2-layer JEDEC Printed-Circuit-Board, No
21.5
air flow
RθJC(top)
Junction-to-case (top) thermal resistance
No air flow
1.9
°C/W
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
RθJA measured on a 1.705-in × 3.0-in 4-layer board, with 1-oz. copper, thirty five thermal vias, no air flow, and 1-W power dissipation.
Refer to PCB layout diagrams.
6.5 Electrical Characteristics
Limits are for TJ = 25°C unless otherwise specified. Minimum and Maximum limits are specified through test, design or
statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference
purposes only. Unless otherwise stated the following conditions apply: VIN = 12 V, VOUT = 1.8 V
(1).
PARAMETER
TEST CONDITIONS
MIN(2)
TYP(3)
MAX(2)
UNIT
SYSTEM PARAMETERS
ENABLE CONTROL
1.18
VEN
EN threshold trip point
VEN rising
V
over the junction temperature
1.1
1.25
(TJ) range of -40°C to +125°C
VEN-HYS
EN threshold hysteresis
VEN falling
90
mV
SOFT-START
8
ISS
SS source current
VSS = 0 V
µA
over the junction temperature
5
11
(TJ) range of -40°C to +125°C
ISS-DIS
SS discharge current
–200
µA
CURRENT LIMIT
2.6
ICL
Current limit threshold
DC average
A
over the junction temperature
2.3
3.65
(TJ) range of -40°C to +125°C
ON/OFF TIMER
ON timer minimum pulse
tON-MIN
150
ns
width
tOFF
OFF timer pulse width
260
ns
(1)
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2024 and layout for information on device under test.
(2)
Minimum and Maximum limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through
correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).
(3)
Typical numbers are at 25°C and represent the most likely parametric norm.
4
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