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参数资料
| 型号： | LT3503EDCB |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 2 X 3 MM, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 1/20页 |
| 文件大小： | 423K |
| 代理商： | LT3503EDCB |
1
LT3503
3503f
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
1A, 2.2MHz Step-Down
Switching Regulator in
2mm
× 3mm DFN
The LT
3503 is a current mode PWM step-down DC/DC
converter with an internal 1.45A power switch. The wide
operating input range of 3.6V to 20V makes the LT3503
ideal for regulating power from a wide variety of sources.
Its high operating frequency allows the use of tiny, low
cost inductors and ceramic capacitors, resulting in low,
predictable output ripple.
Cycle-by-cycle current limit provides protection against
shorted outputs and soft-start eliminates input current
surge during start-up. The low current (<2
A) shutdown
mode provides output disconnect, enabling easy power
management in battery-powered systems.
■
Wide Input Range: 3.6V to 20V
■ 5V at 1.2A from 11V to 18V Input
■ 5V at 1A from 7.2V to 18V Input
■
3.3V at 1.2A from 8.5V to 12V Input
■ 3.3V at 1A from 5.5V to 12V Input
■ Fixed Frequency Operation: 2.2MHz
■
Output Adjustable Down to 780mV
■ Short-Circuit Robust
■ Uses Tiny Capacitors and Inductors
■
Soft-Start
■ Internally Compensated
■ Low Shutdown Current: <2
A
■
Low VCESAT Switch: 400mV at 1A
■ Thermally Enhanced, 2mm
× 3mm 6-Pin DFN
Low Profile Package
■ Automotive Battery Regulation
■
Industrial Control Supplies
■ Wall Transformer Regulation
■ Distributed Supply Regulation
■
Battery-Powered Equipment
3.3V Step-Down Converter
Efficiency
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
VIN
4.5V TO 12V
20V MAX
ON OFF
0.1
F
2.5
H
37.4k
10
F
3503 TA01a
120pF
1
F
11.5k
VOUT
3.3V
1A, VIN > 5.5V
1.2A, VIN > 8.5V
VIN
BOOST
GND
FB
SHDN
SW
LT3503
LOAD CURRENT (A)
0
85
80
75
70
65
60
55
50
0.6
1.0
3503 TA01b
0.2
0.4
0.8
1.2
EFFICIENCY
(%)
VIN = 12V
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| LT3585EDDB-3 | 1.85 A BATTERY CHARGE CONTROLLER, PDSO10 |
| LT3587EUD#PBF | SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PQCC20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3503EDCB#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 6-Pin DFN EP 制造商:Linear Technology 功能描述:REG SWITCHING STEP DOWN 1A 2.2MHZ 制造商:Linear Technology 功能描述:REG, SWITCHING, STEP DOWN, 1A 2.2MHZ 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Cut Tape 1A, 2.2MHz Buck Regulator ;RoHS Compliant: Yes |
| LT3503EDCB#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 6-Pin DFN EP T/R |
| LT3503EDCB#TRMPBF | 功能描述:IC REG BUCK ADJ 1A 6DFN 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 |
| LT3503EDCB#TRPBF | 功能描述:IC REG BUCK ADJ 1A 6DFN 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 |
| LT3503EDCBTRMPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 3.6-20V DFN6EP |
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