Datasheet

5 10 15 20 25 30 35 40 45
2.0
2.5
3.0
3.5
4.0
4.5
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
5 10 15 20 25 30 35 40 45
1.0
1.5
2.0
2.5
3.0
3.5
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
5 10 15 20 25 30 35 40 45
3.0
3.5
4.0
4.5
5.0
5.5
6.0
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
200 mV/Div
1 ms/Div
1.0 A/Div
IOUT
VOUT=12V
0.0 0.5 1.0 1.5 2.0 2.5 3.0
11.6
11.8
12.0
12.2
12.4
12.6
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (A)
VIN = 15V
VIN = 24V
VIN = 30V
VIN = 36V
VIN = 42V
±1%
5V/Div
1 ms/Div
VOUT
ENABLE
Performance Characteristics www.ti.com
LMZ14203H Startup LMZ14203H Line and Load Regulation
LMZ14203H Transient Response
30% to 100% Load Step LMZ14203H Current Limit
LMZ14202H Current Limit LMZ14201H Current Limit
4
AN-2089 LMZ14203H/02H/01H Evaluation Board SNVA459A–January 2011–Revised April 2013
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