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LMZ34202

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SNVSAJ2 – MARCH 2016

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Copyright © 2016, Texas Instruments Incorporated

Electrical Characteristics (continued)

(unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(4)

The specified minimum ceramic input capacitance represents the standard capacitance value. The actual effective capacitance after

considering the effects of DC bias and temperature variation should be

≥ 4.7 µF.

(5)

The amount of required output capacitance varies depending on the output voltage (see Output Capacitor Selection). The minimum

required output capacitance must be comprised of ceramic capacitance. The amount of required ceramic capacitance represents the

standard capacitance value. Locate the capacitance close to the device. Adding additional ceramic or non-ceramic capacitance close to

the load improves the response of the regulator to load transients.

(6)

The maximum allowable output capacitance varies depending on the output voltage (see Output Capacitor Selection).

THERMAL SHUTDOWN

Thermal shutdown

Shutdown Temperature

160

°C

Hysteresis

10

°C

INPUT/OUTPUT CAPACITANCE

External input capacitance

ceramic

µF

non-ceramic

100

µF

External output capacitance

Ceramic

µF

Non-ceramic

100

µF

ceramic + non-ceramic

µF

Equivalent series resistance (ESR)

20

m

Ω

6.6 Switching Characteristics

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Switching frequency

RT and RTSEL pins open

410

500

590

kHz

CLK Control

Synchronization frequency

200

1000

kHz

CLK high level

2

5.5

V

CLK low level

0.4

V

CLK duty cycle

10%

50%

90%