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| 型号： | LTC1530CS8-2.8#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 1/24页 |
| 文件大小： | 301K |
| 代理商： | LTC1530CS8-2.8#TR |
1
LTC1530
1530fa
The LTC
1530 is a high power synchronous switching
regulator controller optimized for 5V to 1.3V-3.5V output
applications. Its synchronous switching architecture drives
two external N-channel MOSFET devices to provide high
efficiency. The LTC1530 contains a precision trimmed
reference and feedback system that provides worst-case
output voltage regulation of
±2% over temperature, load
current and line voltage shifts. Current limit circuitry
senses the output current through the on-resistance of
the topside N-channel MOSFET, providing an adjustable
current limit without requiring an external low value sense
resistor.
The LTC1530 includes a fixed frequency PWM oscillator
that free runs at 300kHz, providing greater than 90%
efficiency in converter designs from 1A to 20A of output
current. Shutdown mode drops the LTC1530 supply cur-
rent to 45
A.
The LTC1530 is specified for commercial and industrial
temperature ranges and is available in the S0-8 package.
Figure 1. Single 5V to 3.3V Supply
LOAD CURRENT (A)
0
0.3
EFFICIENCY
(%)
100
90
80
70
60
50
40
30
20
10
0
4
8
10
1530 F01b
2
6
12
14
TA = 25°C
Efficiency vs Load Current
s
High Power Buck Converter from 5V or 3.3V Input
s
Adjustable Current Limit in S0-8 with
Topside FET RDS(ON) Sensing
s
No External Sense Resistor Required
s
Hiccup Mode Current Limit Protection
s
Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output
s
All N-Channel MOSFET Synchronous Driver
s
Excellent Output Regulation:
±2% over Line, Load
and Temperature Variations
s
High Efficiency: Over 95% Possible
s
Fast Transient Response
s
Fixed 300kHz Frequency Operation
s
Internal Soft-Start Circuit
s
Quiescent Current: 1mA; 45
A in Shutdown
s
Power Supply for Pentium
II, AMD-K6-2, SPARC,
ALPHA and PA-RISC Microprocessors
s
High Power 5V to 1.3V-3.5V Regulators
+
2.7k
0.1
F
10
F
+
COUT
330
F
× 7
CIN1200F
× 4
L1
2
H
MBR0530T1 MBR0530T1
20
PVCC
GND
LTC1530-3.3
G1
COMP
IFB
IMAX
G2
VOUT
3.3V
14A
1530 F01a
VIN
5V
CIN: SANYO 10MV1200GX
COUT: AVX TPSE337M006R0100
L1: COILTRONICS CTX02-13198
OR PANASONIC ETQP6F2R5HA
Q1, Q2: SILICONIX SUD50N03-10
10k
0.022
F
0.22
F
Q1
Q2
150pF
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corp.
AMD-K6 is a registered trademark of Advanced Micro Devices, Inc.
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
High Power Synchronous
Switching Regulator Controller
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| LTC1530CS8-3.3 | 功能描述:IC SW REG CNTRLR SYNC 3.3V 8SOIC 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 |
| LTC1530CS8-3.3#PBF | 功能描述:IC SW REG CNTRLR SYNC 3.3V 8SOIC 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 |
| LTC1530CS8-3.3#TR | 功能描述:IC SW REG CTRLR SYNC HIPWR 8SOIC 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 |
| LTC1530CS8-3.3#TRPBF | 功能描述:IC SW REG CNTRLR SYNC 3.3V 8SOIC 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 |
| LTC1530IS8 | 功能描述:IC SW REG CNTRLR SYNC ADJ 8-SOIC 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 |
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