ltm8021 Linear Technology Corporation, ltm8021 Datasheet - Page 13

• Manufacturer Part Number: ltm8021
• Description: 36vin, 500ma Step-down Dc/dc ?module
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
*RUNNING VOLTAGE RANGE. PLEASE REFER TO THE
APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS.
*RUNNING VOLTAGE RANGE. PLEASE REFER TO THE
3.75V TO 31V
APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS.
3.4V TO 36V
V
IN
V
IN
*
*
–5V Positive-to-Negative Converter
5V
1μF
0.8V Step-Down Converter
1μF
V
BIAS
RUN/SS
RUN/SS
IN
V
IN
GND
GND
LTM8021
LTM8021
ADJ
ADJ
V
V
OUT
BIAS
OUT
19.1k
*RUNNING VOLTAGE RANGE. PLEASE REFER TO THE
APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS.
7V TO 36V
V
IN
100μF
*
V
0.8V AT 500mA
OUT
4.7μF
8021 TA02
5V Step-Down Converter
1μF
RUN/SS
V
OPTIONAL
SCHOTTKY
CLAMP
8021 TA05
IN
–5V
GND
LTM8021
ADJ
V
BIAS
*RUNNING VOLTAGE RANGE. PLEASE REFER TO THE
APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS.
OUT
19.1k
3.4V TO 36V
V
IN
*
2.2μF
600
400
300
200
500
100
0
V
5V AT 500mA
OUT
0
5V
Load Current vs Input Voltage
8021 TA04
1.8V Step-Down Converter
1μF
5
V
BIAS
RUN/SS
IN
GND
LTM8021
10
V
IN
ADJ
(V)
V
OUT
15
78.7k
20
LTM8021
8021 TA05b
100μF
V
1.8V AT 500mA
25
OUT
8021 TA03
13
8021fa