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| 型号： | LTC1530CS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC SW REG CTRLR SYNC HIPWR 8SOIC |
| 标准包装： | 2,500 |
| 应用： | 控制器，Intel Pentium? II，AMD-K6?-2 |
| 输入电压： | 3.75 V ~ 13.2 V |
| 输出数： | 1 |
| 输出电压： | 1.3 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
LTC1530
High Power Synchronous
Switching Regulator Controller
FEATURES
DESCRIPTIO
s
s
s
s
s
s
s
s
s
s
s
s
High Power Buck Converter from 5V or 3.3V Input
Adjustable Current Limit in S0-8 with
Topside FET R DS(ON) Sensing
No External Sense Resistor Required
Hiccup Mode Current Limit Protection
Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output
All N-Channel MOSFET Synchronous Driver
Excellent Output Regulation: ± 2% over Line, Load
and Temperature Variations
High Efficiency: Over 95% Possible
Fast Transient Response
Fixed 300kHz Frequency Operation
Internal Soft-Start Circuit
Quiescent Current: 1mA; 45 μ A in Shutdown
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
Power Supply for Pentium ? II, AMD-K6 ? -2, SPARC,
High Power 5V to 1.3V-3.5V Regulators
APPLICATIO S
s
ALPHA and PA-RISC Microprocessors
s
TYPICAL APPLICATIO
V IN
5V
MBR0530T1 MBR0530T1
current. Shutdown mode drops the LTC1530 supply cur-
rent to 45 μ A.
The LTC1530 is specified for commercial and industrial
temperature ranges and is available in the S0-8 package.
, 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.
Efficiency vs Load Current
100
90
2.7k
0.1 μ F
+
10 μ F
0.22 μ F
+
C IN 1200 μ F
× 4
80
70
60
150pF
10k
I MAX PV CC
COMP
LTC1530-3.3
G1
I FB
G2
20 ?
Q1
Q2
L1
2 μ H
+
C OUT
330 μ F
× 7
V OUT
3.3V
14A
50
40
30
20
0.022 μ F
GND
V OUT
1530 F01a
C IN : SANYO 10MV1200GX
10
T A = 25 ° C
C OUT : AVX TPSE337M006R0100
L1: COILTRONICS CTX02-13198
0
0
2
4
6
8
10
12
14
OR PANASONIC ETQP6F2R5HA
Q1, Q2: SILICONIX SUD50N03-10
0.3
LOAD CURRENT (A)
1530 F01b
Figure 1. Single 5V to 3.3V Supply
1530fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LTC1530IS8#PBF | 功能描述:IC SW REG CNTRLR SYNC ADJ 8-SOIC 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#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 |
| LTC1530IS8#TRPBF | 功能描述:IC SW REG CNTRLR SYNC ADJ 8-SOIC 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 |
| LTC1530IS8-1.9 | 功能描述:IC SW REG CNTRLR SYNC 1.9V 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 |
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