参数资料
型号: LTC1772ES6#TRPBF
厂商: Linear Technology
文件页数: 12/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM SOT23-6
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 650kHz
占空比: 100%
电源电压: 2.5 V ~ 9.8 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
LTC1772
TYPICAL APPLICATIO N S
LTC1772 3.3V to 5V/1A Boost Regulator
V IN
R1
0.033 ?
C1
SENSE –
R4
10k
C3
220pF
3.3V
47 μ F
16V
× 2
1
I TH /RUN PGATE
LTC1772
2
GND V IN
3
V FB
6
5
4
U1
2
5
3
4
L1
4.7 μ H
D1
M1
+
C2
100 μ F
10V
× 2
R2
V OUT
5V
1A
422k
C1: AVXTPSE476M016R0047
C2: AVXTPSE107M010R0100
D1: IR10BQ015
L1: MURATA LQN6C-4R7
M1: Si9804
R1: DALE 0.25W
U1: FAIRCHILD NC7SZ04
ALSO SEE LTC1872
FOR THIS APPLICATION
R3
80.6k
1772 TA03
LTC1772 5V/0.5A Flyback Regulator
V IN
2.5V
R1
0.033 ?
C2
47 μ F
TO 9.8V
R4
10k
C3
220pF
1
2
3
I TH /RUN PGATE
LTC1772
GND V IN
V FB SENSE –
6
5
4
M1
C5
150pF
R6 CERAMIC
100 ?
16V
× 2
R5
22 ?
?
C4 10 μ H
100pF
CERAMIC
T1
10 μ H
?
D1
+
C2
100 μ F
10V
× 2
R2
52.3k
V OUT
5V
0.5A
RELATED PARTS
C1: AVXTPSE476M016R0047
C2: AVXTPSE107M010R0100
D1: IR10BQ015
M1: Si9803
R1: DALE 0.25W
T1: COILTRONICS CTX10-4
R3
10k
1772 TA04
No R SENSE Synchronous Step-Down Regulator
PART NUMBER
LTC1147 Series
LT1375/LT1376
LTC1622
LTC1624
LTC1625
LTC1627
LTC1649
LTC1702
LTC1735
LTC1771
LTC1872
DESCRIPTION
High Efficiency Step-Down Switching Regulator Controllers
1.5A, 500kHz Step-Down Switching Regulators
Low Input Voltage Current Mode Step-Down DC/DC Controller
High Efficiency SO-8 N-Channel Switching Regulator Controller
TM
Low Voltage, Monolithic Synchronous Step-Down Regulator
3.3V Input Synchronous Controller
550kHz, 2 Phase, Dual Synchronous Controller
Single, High Efficiency, Low Noise Synchronous Switching Controller
Ultra-Low Supply Current Step-Down DC/DC Controller
SOT-23 Step-Up Controller
COMMENTS
100% Duty Cycle, 3.5V ≤ V IN ≤ 16V
High Frequency, Small Inductor, High Efficiency
V IN 2V to 10V, I OUT Up to 4.5A, Synchronizable to
750kHz Optional Burst Mode Operation, 8-Lead MSOP
N-Channel Drive, 3.5V ≤ V IN ≤ 36V
97% Efficiency, No Sense Resistor
Low Supply Voltage Range: 2.65V to 8V, I OUT = 0.5A
No Need for 5V Supply, Uses Standard Logic Gate
MOSFETs; I OUT up to 15A
Two Channels; Minimum C IN and C OUT , I OUT up to 15A
High Efficiency 5V to 3.3V Conversion at up to 15A
10 μ A Supply Current, 93% Efficiency,
1.23V ≤ V OUT ≤ 18V; 2.8V ≤ V IN ≤ 20V
2.5V ≤ V IN ≤ 9.8V; 550kHz; 90% Efficiency
No R SENSE is a trademark of Linear Technology Corporation.
1772fb
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LT/LT 0605 500 REV B ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1999
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相关代理商/技术参数
参数描述
LTC1772HS6#TRMPBF 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LTC1772HS6#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LTC1772IS6 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Down 2.5V to 9.8V Input 6-Pin TSOT-23
LTC1772IS6#PBF 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Down 2.5V to 9.8V Input 6-Pin TSOT-23
LTC1772IS6#TR 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)