LT1073CS8 Linear Technology, LT1073CS8 Datasheet - Page 13

• Manufacturer Part Number: LT1073CS8
• Description: IC DC/DC CONVERTER ADJSTBL 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost), Invertingr

Specifications of LT1073CS8

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adjustable
• Current - Output: 400mA
• Frequency - Switching: 19kHz
• Voltage - Input: 1 ~ 30 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Power - Output: 500mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO S
BATTERY
CELL
* 1% METAL FILM
†
1.5V
L1 = GOWANDA GA10-822k
†
MINIMUM START-UP VOLTAGE = 1.1V
1.5V to 5V Step-Up Converter with Logic Shutdown
SHUTDOWN
L1 = GOWANDA GA10-123k
1.5V
CELL
9V
OR CADDELL-BURNS 7300-12
1.5V to 5V Bootstrapped Step-Up Converter
OR CADDELL-BURNS 7300-14
* 1% METAL FILM
†
L1 = GOWANDA GA10-103k
2.2k
GND
I
LIM
OR CADDELL-BURNS 7300-13
9V to 3V Step-Down Converter
LT1073
GND
I
GND
LIM
I
OPERATE
LIM
2N3906
LT1073-5
LT1073
220
56
SW2
SW1
V
SENSE
IN
FB
SW2
SW1
V
SW2
SW1
V
IN
FB
82 H
IN
L1
1N4148
1N5818
†
100 H
47 H
74C04
L1
L1
†
†
1N5818
+
1N5818
U
100 F
40.2k*
909k*
+
+
536k*
40.2k*
1073 TA11
100 F
3V OUTPUT
1073 TA15
5V OUTPUT
100 F
5V OUTPUT
50mA
1073 TA13
* 1% METAL FILM
†
L1 = GOWANDA GA10-822k
1.5V
CELL
1.5V to 5V Step-Up Converter with Low-Battery Detector
OR CADDELL-BURNS 7300-12
* 1% METAL FILM
**OPTIONAL
†
L1 = GOWANDA GA10-822k
442k*
100k*
1.5V
CELL
†
OR CADDELL-BURNS 7300-12
L1 = GOWANDA GA10-103k
9V
BATTERY
GND
I
LIM
AO
GND
I
SET
LIM
OR CADDELL-BURNS 7300-13
LT1073-5
LT1073
9V to 5V Step-Down Converter
SENSE
Memory Backup Supply
SW2
SW1
SW2
V
SW1
V
IN
FB
GND
I
IN
LIM
LT1073-5
82 H
220
82 H
L1
L1
†
SENSE
†
5V MAIN
SUPPLY
SW2
SW1
V
IN
1N5818
40.2k*
1N5818
1N5818
806k*
100 H
L1
†
+
+
+
1073 TA16
100 F
100 F**
5V OUTPUT
100 F
1073 TA12
5V TO MEMORY,
4.5V WHEN MAIN
SUPPLY OPEN
LT1073
1073 TA14
100k
5V OUTPUT
LO BAT
GOES LOW
AT V
= 1.15V
13
BATTERY