参数资料
型号: LTC1530IS8-3.3#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: 3.3V
工作温度: -40°C ~ 85°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
相关PDF资料
PDF描述
VE-J5V-CX CONVERTER MOD DC/DC 5.8V 75W
VI-J7J-EZ-B1 CONVERTER MOD DC/DC 36V 25W
VI-B34-EY-F3 CONVERTER MOD DC/DC 48V 50W
VE-J5R-CX CONVERTER MOD DC/DC 7.5V 75W
VI-J74-EZ-B1 CONVERTER MOD DC/DC 48V 25W
相关代理商/技术参数
参数描述
LTC1530IS8PBF 制造商:Linear Technology 功能描述:DC-DC Controller Sync Buck 3.5-7V SOIC8
LTC1530IS8TR 制造商:Linear Technology 功能描述:
LTC1531CSW 功能描述:IC COMP ISOLATED SLF-PWRD 28SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 比较器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS,推挽式,满摆幅,TTL 电压 - 电源,单路/双路(±):2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V 电压 - 输入偏移(最小值):5mV @ 5.5V 电流 - 输入偏压(最小值):1pA @ 5.5V 电流 - 输出(标准):- 电流 - 静态(最大值):24µA CMRR, PSRR(标准):80dB CMRR,80dB PSRR 传输延迟(最大):450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA,CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586
LTC1531CSW#PBF 功能描述:IC COMP ISOLATED SLF-PWRD 28SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS,推挽式,满摆幅,TTL 电压 - 电源,单路/双路(±):2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V 电压 - 输入偏移(最小值):5mV @ 5.5V 电流 - 输入偏压(最小值):1pA @ 5.5V 电流 - 输出(标准):- 电流 - 静态(最大值):24µA CMRR, PSRR(标准):80dB CMRR,80dB PSRR 传输延迟(最大):450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA,CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586
LTC1531CSW#TR 功能描述:IC COMP DIFF DUAL SELFPWR 28SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 比较器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS,推挽式,满摆幅,TTL 电压 - 电源,单路/双路(±):2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V 电压 - 输入偏移(最小值):5mV @ 5.5V 电流 - 输入偏压(最小值):1pA @ 5.5V 电流 - 输出(标准):- 电流 - 静态(最大值):24µA CMRR, PSRR(标准):80dB CMRR,80dB PSRR 传输延迟(最大):450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA,CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586