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| 型号： | LTC1430CN8 |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC SW REG CNTRLR STEP-DWN 8-DIP |
| 标准包装： | 50 |
| 应用： | 控制器，Intel Pentium? |
| 输入电压： | 4 V ~ 8 V |
| 输出数： | 1 |
| 输出电压： | 3.3V，可调 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
LTC1430
High Power Step-Down
Switching Regulator Controller
FEATURES
DESCRIPTIO
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High Power 5V to 3.xV Switching Controller:
Can Exceed 10A Output
All N-Channel External MOSFETs
Constant Frequency Operation —Small Inductor
Excellent Output Regulation: ± 1% Over Line, Load
and Temperature Variations
High Efficiency: Over 95% Possible
Fixed Frequency Operation
No Low Value Sense Resistor Needed
Outputs Can Drive External FETs with Up to
The LTC ? 1430 is a high power, high efficiency switching
regulator controller optimized for 5V to 3.xV applications.
It includes a precision internal reference and an internal
feedback system that can provide output regulation of ± 1%
over temperature, load current and line voltage shifts. The
LTC1430 uses a synchronous switching architecture with
two N-channel output devices, eliminating the need for a
high power, high cost P-channel device. Additionally, it
senses output current across the drain-source resistance
of the upper N-channel FET, providing an adjustable
Quiescent Current: 350 μ A Typ, 1 μ A in Shutdown
Fast Transient Response
Adjustable or Fixed 3.3V Output
Available in 8- and 16-Lead PDIP and SO Packages
10,000pF Gate Capacitance
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APPLICATIO S
current limit without an external low value sense resistor.
The LTC1430 includes a fixed frequency PWM oscillator for
low output ripple under virtually all operating conditions.
The 200kHz free-running clock frequency can be externally
adjusted from 100kHz to above 500kHz. The LTC1430
features low 350 μ A quiescent current, allowing greater
than 90% efficiency operation in converter designs from
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Power Supply for P6 and Pentium ?
Microprocessors
High Power 5V to 3.xV Regulators
Local Regulation for Dual Voltage Logic Boards
Low Voltage, High Current Battery Regulation
1A to greater than 50A output current. Shutdown mode
drops the LTC1430 supply current to 1 μ A. For new
designs, refer to the LTC3830 .
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation.
TYPICAL APPLICATIO
Typical 5V to 3.3V, 10A Application
Efficiency
V IN 5V
100
T A = 25 ° C
100 ?
+
1 μ F
PV CC2
1N4148
PV CC1
16k
0.1 μ F
+ C IN
220 μ F
× 4
M1A, M1B
90
80
V IN = 5V
V OUT = 3.3V
V CC
4.7 μ F
+
0.1 μ F
0.01 μ F
NC
SHUTDOWN
G1
SS I MAX
LTC1430 I FB
FREQSET G2
SHDN PGND
1k
0.1 μ F
2 IN PARALLEL
L1, 2.8 μ H
+
M2
C OUT
330 μ F
× 6
3.3V
10A
70
60
50
C1
220pF
R C
7.5k
C C
4700pF
COMP GND
SENSE +
FB
SENSE –
NC
C IN : AVX-TPSE227M010R0100
C OUT : AVX-TPSE337M006R0100
L1: ETQP6F1R6SFA
LTC1430 ? TA01
40
0.1
1
LOAD CURRENT (A)
10
LTC1430 ? TA02
M1A, M1B, M2: MOTOROLA MTD20N03HL
1
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相关代理商/技术参数 |
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| LTC1430CS | 功能描述:IC SW REG CNTRLR STEP-DWN 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC1430CS#PBF | 功能描述:IC SW REG CNTRLR STEP-DWN 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC1430CS#TR | 功能描述:IC SW REG CNTRLR STEP-DWN 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC1430CS#TRPBF | 功能描述:IC SW REG CNTRLR STEP-DWN 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC1430CS60 | 制造商:LT 功能描述:* |
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