LT1073CS8 Linear Technology, LT1073CS8 Datasheet - Page 11

• 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

APPLICATIO S I FOR ATIO
Table 2. Inductor Manufacturers
MANUFACTURER
Gowanda Electronics Corporation
1 Industrial Place
Gowanda, NY 14070
716-532-2234
Caddell-Burns
258 East Second Street
Mineola, NY 11501
516-746-2310
Coiltronics International
984 S.W. 13th Court
Pompano Beach, FL 33069
305-781-8900
Toko America Incorporated
1250 Feehanville Drive
Mount Prospect, IL 60056
312-297-0070
Renco Electronics Incorporated
60 Jefryn Boulevard, East
Deer Park, NY 11729
800-645-5828
TYPICAL APPLICATIO S
* 1% METAL FILM
†
Figure 12. Settling Low Battery Detector Trip Point
L1 = GOWANDA GA10-123k
1.5V
CELL
V
OR CADDELL-BURNS 7300-14
BAT
GND
I
LIM
R1
R2
LT1073
220
1.5V to 3V Step-Up Converter
212mV
SET
REF
SW2
SW1
U
V
IN
FB
120 H
–
+
L1
GND
V
†
U
IN
1N5818
LT1073
40.2k*
536k*
A0
U
R1 = R2
V
LB
W
= BATTERY TRIP POINT
+
(
5V
212mV
100k
V
LB
1073 TA03
100 F
3V OUTPUT
20mA AT
V
TO
PROCESSOR
PART NUMBERS
GA10 Series
GA40 Series
7300 Series
6860 Series
Custom Toroids
Surface Mount
Type 8RBS
RL1283
RL1284
BATTERY
–1
)
U
1073 F12
= 1V
Table 3. Capacitor Manufacturers
MANUFACTURER
Sanyo Video Components
1201 Sanyo Avenue
San Diego, CA 92073
619-661-6322
Nichicon America Corporation
927 East State Parkway
Schaumberg, IL 60173
708-843-7500
Sprague Electric Company
Lower Main Street
Stanford, ME 04073
207-324-4140
* 1% METAL FILM
†
Figure 13. Output Ripple Reduction Using Gain Block
L1 = GOWANDA GA10-123k
1.5V
CELL
OR CADDELL-BURNS 7300-14
GND
V
I
LIM
OUT
LT1073
680k
V
=
BAT
R3
(
R2
R1
1.5V to 9V Step-Up Converter
SW2
SW1
V
+ 1 212mV
IN
FB
)
GND
I
AO
FB
(
LIM
120 H
LT1073
L1
†
)
SW2
SW1
V
SET
IN
1N5818
24.3k*
L1
1M*
D1
+
1073 TA04
47 F
R2
R1
9V OUTPUT
7mA AT V
16mA AT V
+
PART NUMBERS
OS-CON Series
PL Series
150D Solid Tantalums
550D Tantalex
C1
1073 F13
V
LT1073
OUT
BATTERY
BATTERY
11
= 1V
= 1.5V