LTC1771IS8 Linear Technology, LTC1771IS8 Datasheet - Page 16

• Manufacturer Part Number: LTC1771IS8
• Description: IC CTRLR DC/DC STEPDOWN HE 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1771IS8

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 18 V
• Current - Output: 5A
• Voltage - Input: 2.8 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Frequency - Switching: -

TYPICAL APPLICATIO
LTC1771
RELATED PARTS
PART NUMBER
LTC1147 Series
LTC1174/LTC1174-3.3/LTC1174-5
LTC1265
LTC1474/LTC1475
LTC1574/LTC1574-3.3/LTC1574-5
LTC1622
LTC1624
LT
LT1763 Series
LTC1772
LTC1877
LTC1878
16
®
1761 Series
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
C
C
C1: AVX TPSD107M010R065
D1: MICROSEMI UPS5817
L1A, L1B: COILTRONICS CTX10-4, BH ELECTRONICS S10-1013
IN
OUT
220pF
: AVX TPSD336M020R0200
: SANYO POSCAP 10TPB100M
10k
1%
1M
0.01 F
DESCRIPTION
High Efficiency Step-Down Switching Regulator Controllers
High Efficiency Step-Down and Inverting DC/DC Converters
1.2A High Efficiency Step-Down DC/DC Converter
Low Quiscent Current Step-Down Regulators
High Efficiency Step-Down DC/DC Converters
with Internal Schottky Diode
Low Input Voltage Step-Down DC/DC Controller
High Efficiency SO-8 N-Channel Switching Regulator Controller
100mA, Low Noise, LDO Micropower Regulators in SOT-23
500mA, Low Noise, LDO Micropower Regulators
Constant Frequency Step-Down DC/DC Controller
High Efficiency Monolithic Step-Down Regulator
High Efficiency Monolithic Step-Down Regulator
U
1
2
3
4
RUN/SS
I
V
GND
TH
FB
LTC1771
3.09M
5pF
1%
SENSE
PGATE
MODE
V
IN
5V/1A Zeta Converter
8
7
6
5
MODE
1000pF
22 H
L1A
•
Si3443DV
100 F
10V
C1
0.025
R
SENSE
D1
V
IN
2.8
3.3
7.5
10
12
5
•
(V)
22 H
L1B
I
LOAD(MAX)
0.8
1.1
1.7
2.3
2.7
2.9
+
+
(A)
1771 TA03
COMMENTS
100% DC, 3.5V V
Selectable I
Burst Mode Operation, Internal MOSFET
Monolithic, I
LTC1174 with Internal Schottky Diode
Constant Frequency, 2V to 10V V
95% DC, 3.5V to 36V V
20 A Quiescent Current, 20 V
30 A Quiescent Current, 20 V
SOT-23, 2.2V to 9.8V V
550kHz, MS8, V
I
550kHz, MS8, V
I
OUT
OUT
C
100 F
10V
C
33 F
20V
OUT
IN
2
to 600mA
to 600mA
LINEAR TECHNOLOGY CORPORATION 2000
V
2.8V
TO 12V
V
5V
1A
IN
OUT
1771f LT/TP 1000 4K • PRINTED IN USA
PEAK
Q
= 10 A, 400mA, MS8
IN
IN
= 300mA or 600mA
Up to 10V, I
Up to 6V, I
IN
IN
IN
16V
Q
RMS
RMS
Q
= 10 A,
= 10 A,
IN
, MS8
Noise
Noise