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参数资料
| 型号： | LT1506CS8-3.3#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 8.5 A SWITCHING REGULATOR, 560 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 1/24页 |
| 文件大小： | 295K |
| 代理商： | LT1506CS8-3.3#TR |
1
LT1506
4.5A, 500kHz Step-Down
Switching Regulator
s
Constant 500kHz Switching Frequency
s
Easily Synchronizable
s
Operates with Input as Low as 4V
s
Uses All Surface Mount Components
s
Inductor Size Reduced to 1.8
H
s
Saturating Switch Design: 0.07
s
Shutdown Current: 20
A
s
Cycle-by-Cycle Current Limiting
The LT
1506 is a 500kHz monolithic buck mode switching
regulator functionally identical to the LT1374 but optimized
for lower input voltage applications. It will operate over a
4V to 15V input range compared with 5.5V to 25V for the
LT1374. A 4.5A switch is included on the die along with all
the necessary oscillator, control and logic circuitry. High
switching frequency allows a considerable reduction in the
size of external components. The topology is current mode
for fast transient response and good loop stability. Both
fixed output voltage and adjustable parts are available.
A special high speed bipolar process and new design tech-
niques achieve high efficiency at high switching frequency.
Efficiency is maintained over a wide output current range
by keeping quiescent supply current to 4mA and by utiliz-
ing a supply boost capacitor to saturate the power switch.
The LT1506 fits into standard 7-pin DD and fused lead
SO-8 packages. Full cycle-by-cycle short-circuit protection
and thermal shutdown are provided. Standard surface
mount external parts are used, including the inductor and
capacitors. There is the optional function of shutdown or
synchronization. A shutdown signal reduces supply current
to 20
A.Synchronizationallowsanexternallogiclevelsig-
nal to increase the internal oscillator from 580kHz to 1MHz.
s
Portable Computers
s
Battery-Powered Systems
s
Battery Charger
s
Distributed Power
, LTC and LT are registered trademarks of Linear Technology Corporation.
LOAD CURRENT (A)
0
EFFICIENCY
(%)
90
85
80
75
70
2.0
2.5
3.0
3.5
1506 TA02
0.5
1.0
1.5
4.0
VOUT = 3.3V
VIN = 5V
L = 10
H
Efficiency vs Load Current
5V to 3.3V Down Converter
BOOST
LT1506-3.3
VIN
OUTPUT
3.3V
4A
INPUT
5V
1506 TA01
C2
0.68
F
CC
1.5nF
D1
MBRS330T3
C1
100
F, 10V
SOLID
TANTALUM
C3
10
F TO
50
F
CERAMIC
D2
1N914
L1
5
H
VSW
SENSE
SHDN
OPEN
OR
HIGH
= ON
GND
VC
+
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1506CS8PBF | 制造商:Linear Technology 功能描述:Sw. Regulator 4.5A 500kHz Step-Down SO8 |
| LT1506G | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:1.5A GLASS PASSIVATED RECTIFIER |
| LT1506I | 制造商:LINER 制造商全称:Linear Technology 功能描述:4.5A, 500kHz Step-Down Switching Regulator |
| LT1506IR | 功能描述:IC REG BUCK ADJ 4.5A D2PAK RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT1506IR#PBF | 功能描述:IC REG BUCK ADJ 4.5A D2PAK RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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