ADP1073AN-5 AD [Analog Devices], ADP1073AN-5 Datasheet - Page 14

• Manufacturer Part Number: ADP1073AN-5
• Description: Micropower DC.DC Converter Adjustable and Fixed 3.3 V, 5 V, 12 V
• Manufacturer: AD [Analog Devices]

ADP1073
Figure 39. 3 V to 5 V Step-Up Converter with Undervoltage
Lockout
3 VOLT
1.5 VOLT
CELL
1.5 VOLT
Figure 40. 1.5 V to 5 V Low Noise Step-Up Converter
CELL
CELL
909k **
100k
2N3906
*
**1% METAL FILM
***OPTIONAL
L1 = GOWANDA GA10-822k
Figure 38. Memory Backup Supply
*
** 1% METAL FILM
L1 = GOWANDA GA10-822k
680k
*
** 1% METAL FILM
L1 = GOWANDA GA10-682k
I
LIM
OR CADDELL-BURNS 7300-12
GND
OR CADDELL-BURNS 7300-12
ADP1073
FB
AO
100k
2.2M
100k
OR CADDELL-BURNS 7300-11
I
LIM
V
IN
GND
ADP1073
82 H
V
L1
IN
SW2
*
82 H
SW1
FB
L1
SW2
AO
I
SET
MAIN SUPPLY
LIM
*
1N5818
ADP1073
GND
51
SW1
SET
1N5818
5V
V
SW1
SW2
IN
FB
68 H
40.2k **
806k **
L1
*
909k **
40.2k **
1N5818
100 F***
1M **
40.3k **
5V TO MEMORY
4.5V WHEN MAIN
SUPPLY OPEN
5V OUTPUT
20mV p-p RIPPLE
100 F
OS-CON
5V OUTPUT
100mA
LOCKOUT
AT 1.6V
100 F
–14–
TO 12V
Figure 42. 9 V to 5 V Reduced Noise Step-Down Converter
Figure 41. 1.5 V to 5 V Very Low Noise Step-Up Converter
549k **
(2 LITHIUM CELLS)
*
** 1% METAL FILM
EFFICIENCY = 80%
I
OUTPUT RIPPLE = 100mV p-p
1.5 VOLT
20k **
6.5V
L1 = GOWANDA GA10-472k
Q
680k
= 130µA
CELL
3V TO 6V
OR CADDELL-BURNS 7300-09
Figure 43. 3 V to 6 V @ 1 A Step-Up Converter
INPUT
560k
FB
AO
*
** 1% METAL FILM
EFFICIENCY = 83% AT 5mA LOAD
L1 = GOWANDA GA10-473k
I
680k
LIM
GND
ADP1073
OR CADDELL-BURNS 7300-21
FB
V
AO
FB
AO
I
GND
IN
ADP1073
LIM
I
5.1k
LIM
SW2
GND
ADP1073
SW1
V
V
SET
SW2
SW1
IN
IN
SET
470 H
1000 F
10V
1N5818
L1
SW2
*
SET
SW1
25 H
2N3906
1N5818
1N5818
L1
51
47 H
*
L1
*
909k **
40.2k **
MTP3055EL
1N5820
100 F
OS-CON
*
CTX25-5-52
** 1% METAL FILM
L1 = COILTRONICS
5V OUTPUT
5mA AT
V
10mV p-p RIPPLE
100 F
OS-CON
BATTERY
2200 F
10V
REV. 0
900k **
40.2k **
OUTPUT
+6V, 1A
AT V
= 1.00V
5V
90mA
AT 6.5V
IN
OUT
= 3V
IN