LTC1574-5 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1574-5' PDF : 8 Pages View PDF
TYPICAL APPLICATIONS
LTC1574
LTC1574-3.3/LTC1574-5
Low Dropout 5V Step-Down Regulator with Low-Battery Detection
VIN
5.5V to 12.5V
* LOW-BATTERY INDICATOR IS
SET UP TO TRIP AT V IN = 5.5V
** AVX TPSD476K016
† SELECTION
MANUFACTURER
COILTRONICS
SUMIDA
GOWANDA
PART NO.
CTX100-4
CD75-101
GA10-103K
TYPE
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
4.7k
*LOW-
BATTERY
INDICATOR
162k
47.5k
5
6
IPGM
VIN
SHDN 7
11
10
LBOUT LTC1574-5 VOUT
12
LBIN
SW 3, 14
GND
2, 4, 13, 15
+
0.1µF
L1
100µH†
+
47µF**
16V
×2
47µF**
16V
×2
VOUT
5V
365mA
1574 TA04
High Efficiency 3.3V Regulator
VIN
4V TO 12.5V
5
6 IPGM
VIN
7
SHDN
12 LBIN LTC1574-3.3 VOUT 10
11 LBOUT
3, 14
SW
* AVX TPSD226K025
** AVX TPSD476K016
† COILTRONICS CTX50-4
GND
2, 4, 13, 15
+ 22µF*
25V
×2
0.1µF
50µH†
VOUT
3.3V
+ 47µF* 425mA
16V
×2
1574 TA05
* LOW-BATTERY INDICATOR IS
SET TO TRIP AT V IN = 4.4V
** AVX TPSD106K035
*** AVX TPSD107K010
† SELECTION
MANUFACTURER PART NO. TYPE
COILTRONICS CTX50-3 SURFACE MOUNT
COILCRAFT
DT3316-473 SURFACE MOUNT
SUMIDA
CD54-470 SURFACE MOUNT
GOWANDA
GA10-472K THROUGH HOLE
Positive to –5V Converter
VIN
4V TO 12.5V
4.7k
*LOW-
BATTERY
INDICATOR
280k
43k
5
6 IPGM
VIN
SHDN 7
11 LBOUT
VOUT 10
12 LBIN
LTC1574-5
3, 14
SW
GND
2, 4, 13, 15
+
0.1µF
L1†
+
50µH
10µF**
35V
×2
V IN (V)
4
6
8
10
12.5
I OUT (mA)
110
140
170
200
235
100µF***
10V
VOUT
–5V
1574 TA06
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
7
Share Link: 
