LMZ12001

SNVS651F – JANUARY 2010 – REVISED MARCH 2013

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Absolute Maximum Ratings

(1) (2)

VIN, RON to GND

-0.3V to 25V

EN, FB, SS to GND

-0.3V to 7V

Junction Temperature

150°C

Storage Temperature Range

-65°C to 150°C

± 2 kV

Peak Reflow Case Temperature

245°C

(30 sec)

For soldering specifications, refer to the following document: www.ti.com/lit/snoa549c

(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.

(2)

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

specifications.

(3)

The human body model is a 100pF capacitor discharged through a 1.5 k

Ω resistor into each pin. Test method is per JESD-22-114.

Operating Ratings

(1)

4.5V to 20V

EN

0V to 6.5V

Operation Junction Temperature

−40°C to 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.

Electrical Characteristics

to +125°C. Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent

(1)

Min

Typ

Max

Symbol

Parameter

Conditions

Units

(2)

(3)

(2)

SYSTEM PARAMETERS

Enable Control

EN threshold trip point

1.10

1.18

1.25

V

EN threshold hysteresis

90

mV

Soft-Start

SS source current

5

8

11

µA

SS discharge current

-200

µA

Current Limit

Current limit threshold

d.c. average

1.4

2.0

3.0

A

ON/OFF Timer

ON timer minimum pulse width

150

ns

OFF timer pulse width

260

ns

Regulation and Over-Voltage Comparator

In-regulation feedback voltage

0.777

0.798

0.818

V

0.786

0.802

0.818

Feedback over-voltage protection

0.92

V

threshold

Feedback input bias current

5

nA

(1)

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

(2)

Min and Max 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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