LT1977 Linear Technology, LT1977 Datasheet - Page 24

• Manufacturer Part Number: LT1977
• Description: Step-Down Switching Regulator
• Manufacturer: Linear Technology

RELATED PARTS
PART NUMBER
LT1074/LT1074HV
LT1076/LT1076HV
LT1676
LT1765
LT1766
LT1767
LT1776
LTC
LT1940
LT1956
LT1976
LT3010
LTC3407
LTC3412
LTC3414
LT3430
LT3431
LT3433
LTC3727/LTC3727-1 36V, 500kHz, High Efficiency Step-Down DC/DC Controllers
LT1977
24
®
1875
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
4.4A (I
1.6A (I
60V, 440mA (I
Converter
25V, 3A (I
Converter
60V, 1.2A (I
Converter
25V, 1.5A (I
Converter
40V, 550mA (I
Converter
1.5A (I
Dual 1.2A (I
Converter
60V, 1.2A (I
Converter
60V, 1.5A (I
Converter
80V, 50mA, Low Noise Linear Regulator
Dual 600mA (I
Converter
2.5A (I
4A (I
60V, 2.5A (I
Converter
60V, 2.5A (I
Converter
60V, 400mA (I
●
OUT
FAX: [phone]
OUT
OUT
OUT
OUT
), 4MHz, Synchronous Step-Down DC/DC Converter
OUT
), 100kHz, High Efficiency Step-Down DC/DC Converters
), 100kHz, High Efficiency Step-Down DC/DC Converters
), 550kHz, Synchronous Step-Down DC/DC Converter
), 4MHz, Synchronous Step-Down DC/DC Converter
OUT
OUT
OUT
OUT
OUT
OUT
OUT
), 1.25MHz, High Efficiency Step-Down DC/DC
OUT
OUT
OUT
OUT
), 200kHz, High Efficiency Step-Down DC/DC
), 1.25MHz, High Efficiency Step-Down DC/DC
), 1.1MHz, High Efficiency Step-Down DC/DC
), 500kHz, High Efficiency Step-Down DC/DC
), 200kHz High Efficiency Step-Down DC/DC
), 200kHz, High Efficiency Step-Down DC/DC
), 500kHz, High Efficiency Step-Down DC/DC
), 100kHz, High Efficiency Step-Down DC/DC
), 200kHz, High Efficiency Step-Down DC/DC
), 1.5MHz, High Efficiency Step-Down DC/DC
), 200kHz, Buck-Boost DC/DC Converter
●
www.linear.com
COMMENTS
V
I
V
I
V
I
V
SO-8, TSSOP16/E
V
I
V
MS8E
V
I
V
TSSOP16
V
V
I
V
V
MS8E
V
V
TSSOP16E
V
TSSOP20E
V
I
V
I
V
V
QFN-32, SSOP-28
SD
SD
SD
SD
SD
SD
SD
SD
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
: 7.3V to 45V/64V, V
: 7.3V to 45V/64V, V
: 7.4V to 60V, V
: 3V to 25V, V
: 5.5V to 60V, V
: 3V to 25V, V
: 7.4V to 40V, V
: 2.7V to 6V, V
: 3V to 25V, V
: 5.5V to 60V, V
: 3.3V to 60V, I
: 1.5V to 80V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.25V to 5.5V, V
: 5.5V to 60V, V
: 5.5V to 60V, V
: 5V to 60V, V
: 4V to 36V, V
< 10µA, DD5/7, TO220-5/7
< 10µA, DD5/7, TO220-5/7
< 2.5µA, S8
< 25µA, TSSOP16E
< 30µA, N8, S8
< 25µA, TSSOP16E
< 30µA, TSSOP16E
< 30µA, TSSOP16E
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT
OUT(MIN)
OUT(MIN)
Q
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
= 100µA, I
: 3.3V to 20V, I
OUT(MIN)
© LINEAR TECHNOLOGY CORPORATION 2004
OUT(MIN)
OUT(MIN)
= 1.20V, I
= 1.20V, I
= 1.2V, I
= 0.8V, I
= 0.8V, I
= 1.20V, I
= 1.24V, I
= 1.20V, I
= 1.28V, I
= 1.20V, I
= 1.20V, I
= 1.24V, I
= 0.6V, I
= 0.8V, I
= 0.8V, I
SD
LT/TP 0604 1K PRINTED IN USA
= 2.21V, I
= 2.21V, I
< 1µA, TSSOP16E
Q
Q
Q
Q
Q
Q
= 3.8mA, MS10
= 670µA, I
= 15µA, I
Q
Q
= 1mA, I
Q
= 1mA, I
Q
Q
Q
Q
Q
= 100µA, TSSOP16E
Q
Q
= 40µA, MS10
= 60µA, I
= 3.2mA,
= 2.5mA,
= 3.2mA,
= 2.5mA,
= 30µA, I
= 2.5mA,
= 2.5mA,
= 64µA, I
Q
Q
= 8.5mA,
= 8.5mA,
SD
SD
SD
SD
SD
SD
< 15µA,
< 6µA,
< 1µA,
SD
< 20µA,
< 1µA,
< 1µA,
< 1µA,
1977f