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参数资料
| 型号： | LT3506IDHD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3.6 A SWITCHING REGULATOR, 650 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 5 X 4 MM, PLASTIC, MO-229WJGD-2, DFN-16 |
| 文件页数： | 1/24页 |
| 文件大小： | 210K |
| 代理商： | LT3506IDHD |
LT3506/LT3506A
1
3506afc
Dual Monolithic 1.6A
Step-Down Switching Regulator
The LT3506 is a dual current mode PWM step-down DC/DC
converter with internal 2A power switches. Both convert-
ers are synchronized to a single oscillator and run with
opposite phases, reducing input ripple current. The output
voltages are set with external resistor dividers, and each
regulator has independent shutdown and soft-start circuits.
Each regulator generates a power-good signal when its
output is in regulation, easing power supply sequencing
and interfacing with microcontrollers and DSPs.
The LT3506 switching frequency is 575kHz and the LT3506A
is 1.1MHz. These high switching frequencies allow the
use of tiny inductors and capacitors, resulting in a very
small dual 1.6A output solution. Constant frequency and
ceramic capacitors combine to produce low, predictable
output ripple voltage. With its wide input range of 3.6V to
25V, the LT3506 regulates a wide variety of power sources,
from 4-cell batteries and 5V logic rails to unregulated wall
transformers, lead acid batteries and distributed-power
supplies. Current mode PWM architecture provides fast
transient response with simple compensation components
and cycle-by-cycle current limiting. Frequency foldback
and thermal shutdown provide additional protection.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n Disk Drives
n DSP Power Supplies
n Wall Transformer Regulation
n Distributed Power Regulation
n DSL Modems
n Cable Modems
n Wide Input Voltage Range, 3.6V to 25V
n Two 1.6A Output Switching Regulators with Internal
Power Switches
n Constant Switching Frequency
LT3506: 575kHz
LT3506A: 1.1MHz
n Anti-Phase Switching Reduces Ripple
n Accurate 0.8V Reference, ±1%
n Independent Shutdown/Soft-Start Pins
n Independent Power Good Indicators Ease Supply
Sequencing
n Uses Small Inductors and Ceramic Capacitors
n Small 16-Lead Thermally Enhanced 5mm
× 4mm
DFN and TSSOP Surface Mount Packages
Efciency
TYPICAL APPLICATION
DESCRIPTION
FEATURES
APPLICATIONS
IOUT (A)
0
50
EFFICIENCY
(%)
70
100
0.5
1.0
3506 TA01b
60
90
80
1.5
2.0
VIN = 5V
VOUT = 1.8V
VOUT = 3.3V
VIN
4.5V TO 25V
PGOOD1
PGOOD2
3506 TA01a
1.5nF
22μF
47μF
22μF
0.22μF
10.7k
18.7k
100k
33.2k
6.4μH
4.7μH
VOUT2
3.3V
1.6A
VOUT1
1.8V
1.6A
15k
D1
D2
15k
10k
1.5nF
1000pF
2200pF
LT3506
VIN2
VIN1
GND
1/2 BAT-54A
D1, D2: ON SEMI MBR5230LT3
BOOST2
SW2
FB2
VC2
RUN/SS2
BOOST1
SW1
FB1
VC1
RUN/SS1
PGOOD1
PGOOD2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3506IDHD#PBF | 功能描述:IC REG BUCK ADJ 1.6A DL 16DFN RoHS:是 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 |
| LT3506IDHD#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK 575KHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 575KHZ, DFN-16 |
| LT3506IDHD#TRPBF | 功能描述:IC REG BUCK ADJ 1.6A DL 16DFN 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:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3506IDHD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506IDHD-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
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