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参数资料
| 型号： | LT3502AEDC |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 2 X 2 MM, PLASTIC, DFN-10 |
| 文件页数： | 1/20页 |
| 文件大小： | 457K |
| 代理商： | LT3502AEDC |
LT3502/LT3502A
1
3502f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
1.1MHz/2.2MHz, 500mA
Step-Down Regulators in
2mm
× 2mm DFN
The LT
3502/LT3502A are current mode PWM step-down
DC/DC converters with an internal 500mA power switch,
in a tiny 8-lead 2mm
× 2mm DFN package. The wide input
voltage range of 3V to 40V makes the LT3502/LT3502A
suitable for regulating power from a wide variety of sources,
including 24V industrial supplies and automotive batteries.
Its high operating frequency allows the use of tiny, low
cost inductors and capacitors, resulting in a very small
solution. Constant frequency above the AM band avoids
interfering with radio reception, making the LT3502A
particularly suitable for automotive applications.
Cycle-by-cycle current limit and frequency foldback pro-
vide protection against shorted outputs. Soft-start and
frequency foldback eliminates input current surge during
start-up. DA current sense provides further protection in
fault conditions. An internal boost diode reduces com-
ponent count.
3.3V Step-Down Converter
■ 3V to 40V Input Voltage Range
■ 500mA Output Current
■ Switching Frequency: 2.2MHz (LT3502A),
1.1MHz (LT3502)
■ 800mV Feedback Voltage
■ Short-Circuit Robust
■ Soft-Start
■ Low Shutdown Current: <2μA
■ Internally Compensated
■ Internal Boost Diode
■ Thermally Enhanced 2mm
× 2mm 8-Lead DFN
■ Automotive Systems
■ Battery-Powered Equipment
■ Wall Transformer Regulation
■ Distributed Supply Regulation
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
LT3502A 12VIN Efciency
VIN
0.1
μF
3502TA01a
31.6k
10k
6.8
μH
SHDN
BOOST
SW
LT3502A
BD
GND
DA
FB
OFF ON
10
μF
1
μF
VIN
4.7V TO 40V
VOUT
3.3V
500mA
LOAD CURRENT (A)
0
EFFICIENCY
(%)
10
30
40
50
0.2
0.4
0.5
90
3502 TA01b
20
0.1
0.3
60
70
80
3.3VOUT
5VOUT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3502AEDC#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3V to 40V 8-Pin DFN EP 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3V to 40V 8-Pin DFN EP Bulk 制造商:Linear Technology 功能描述:BUCK SW REG 0.5A 2.2MHZ 8D 制造商:Linear Technology 功能描述:BUCK, SW REG, 0.5A, 2.2MHZ, 8DFN |
| LT3502AEDC#TRMPBF | 功能描述:IC REG BUCK ADJ 0.5A 8DFN 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:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 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） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LT3502AEDC#TRPBF | 功能描述:IC REG BUCK ADJ 0.5A 8DFN 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:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 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） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LT3502AEDC-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10 |
| LT3502AEDCTRMPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 3-40V DFN8EP 制造商:Linear Technology 功能描述:750kHz/2.2MHz 500mA Step-Down Reg LT3502 |
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