參數(shù)資料
型號(hào): LTC1779CS6
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.5 A SWITCHING REGULATOR, 550 kHz SWITCHING FREQ-MAX, PDSO6
封裝: PLASTIC, SOT-23, 6 PIN
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 170K
代理商: LTC1779CS6
12
LTC1779
1779p LT/TP 0600 4K PRINTED IN USA
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
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100% Duty Cycle, 3.5V
≤ VIN ≤ 16V
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Multiple Output Capability, 3.5V
≤ VIN ≤ 36V
LTC1622
Low Input Voltage Current Mode Step-Down DC/DC Controller
VIN 2V to 10V, IOUT Up to 4.5A,
Burst Mode Operation Optional, 8-Lead MSOP
LTC1624
High Efficiency SO-8 N-Channel Switching Regulator Controller
8-Pin N-Channel Drive, 3.5V
≤ VIN ≤ 36V
LTC1625
No RSENSE
TM Synchronous Step-Down Regulator
High Efficiency, No Sense Resistor
LTC1626
Low Voltage, High Efficiency Step-Down DC/DC Converter
Monolithic, Constant Off-Time, Low Voltage Range:
2.5V to 6V
LTC1627
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Low Supply Voltage Range: 2.65V to 8V, IOUT = 0.5A
LTC1735
Single, High Efficiency, Low Noise Synchronous Switching Controller
High Efficiency 5V to 3.3V Conversion at up to 15A
LTC1772
Constant Frequency Current Mode Step-Down DC/DC Controller
VIN = 2.5V to 9.8V, IOUT Up to 2A, SOT-23 Package
No RSENSE is a trademark of Linear Technology Corporation.
LINEAR TECHNOLOGY CORPORATION 2000
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
TYPICAL APPLICATIONS
U
LTC1779 Minimal Component Count, Single Li-Ion to 1.8V/250mA Step-Down Converter
Efficiency vs Load Current
ITH/RUN
LTC1779
20k
100k
80.6k
L1
10
H
D1
100pF
GND
VFB
6
5
4
1779 TA01a
1
2
3
SW
VIN
SENSE
C1
10
F
16V
VIN
2.7V
TO 4.2V
VOUT
1.8V
250mA
C2
47
F
6V
+
C1: TAIYO YUDEN CERAMIC EMK325BJ106MNT
C2: SANYO POSCAP 6TPA47M
D1: IR10BQ015
L1: COILTRONICS UP1B100
LOAD CURRENT (mA)
65
EFFICIENCY
(%)
95
100
60
55
90
75
85
80
70
0.1
10
100
1k
1779 TA01b
50
1
VIN = 2.7V
VOUT = 1.8V
RSENSE = 0
VIN = 4.2V
VIN = 3.6V
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