107312 View Datasheet(PDF) - Linear Technology
Part Name
Description
View to exact match
107312 Datasheet PDF : 16 Pages
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LT1073
TYPICAL APPLICATIO S
3V to 5V Step-Up Converter with Undervoltage Lockout
909k*
100k
L1†
68µH
1N5818
100Ω
5V OUTPUT
100mA
LOCKOUT
AT 1.8V
2N3906
3V
100k
2.2M
100k*
ILIM
VIN
AO
SW1
LT1073
SET
FB
GND SW2
1M*
+
100µF
40.3k*
* 1% METAL FILM
† L1 = GOWANDA GA10-682k
OR CADDELL-BURNS 7300-11
1073 TA17
1.5V to 5V Low Noise Step-Up Converter
680k
L1†
82µH
1N5818
5V OUTPUT
20mVP-P RIPPLE
ILIM
VIN
FB
SW1
1.5V
LT1073
AO
SET
GND SW2
909k*
+ 100µF
OS-CON
40.2k*
* 1% METAL FILM
† L1 = GOWANDA GA10-822k
OR CADDELL-BURNS 7300-12
1073 TA18
1.5V to 5V Very Low Noise Step-Up Converter
680k
L1†
470µH
1N5818
5V OUTPUT
5mA AT VBATTERY = 1V
10mVP-P RIPPLE
ILIM
VIN
FB
SW1
1.5V
LT1073
AO
SET
GND SW2
909k*
+ 100µF
OS-CON
40.2k*
* 1% METAL FILM
† L1 = GOWANDA GA10-473k
OR CADDELL-BURNS 7300-21
EFFICIENCY = 83% AT 5mA LOAD
1073 TA19
9V to 5V Reduced Noise Step-Down Converter
+VIN
6.5V TO 12V
680k
220Ω
L1†
47µH
5VOUT
90mA AT 6.5VIN
ILIM VIN SW1
FB
LT1073
1N5818
100µF +
OS-CON
909k*
AO
SET
GND SW2
40.2k*
* 1% METAL FILM
† L1 = GOWANDA GA10-472k
OR CADDELL-BURNS 7300-09
EFFICIENCY ≈ 80%
IQ ≈ 130µA
OUTPUT NOISE ≈ 100mVP-P
1073 TA20
3V to 6V at 1A Step-Up Converter
INPUT
3V TO 6V
(2 LITHIUM CELLS)
L1†
25µH
6V OUTPUT
1A AT
VIN = 3V
+
1000µF
560k
549k*
ILIM
VIN
FB
SW1
LT1073
AO
SET
GND SW2
1N5818 51Ω
20k*
* 1% METAL FILM
† L1 = COILTRONICS CTX25-5-52
LOW IQ (<250µA)
2N3906
5.1k
1N5820
+
2200µF
MTP3055EL
1073 TA21
14
1.5V Powered 350ps Risetime Pulse Generator
MUR120
90V BIAS
1.5V
L1†
150µH
0.1µF MUR120
220Ω
ILIM
VIN
SW1
LT1073
FB
GND SW2
MUR120
0.1µF
0.1µF
1M
C1
2pF TO 4pF
10M
Q1
2N2369
OUTPUT
5V INTO
50Ω PULSE
WIDTH ≈ 1ns
24k 10k
†L1 = TOKO 262LYF-0095K
SELECT Q1 AND C1 FOR OPTIMUM RISE AND FALL
50Ω
1073 TA22
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