- 您现在的位置：买卖IC网 > PDF目录1830 > LTC3547EDDB-1#TRPBF (Linear Technology)IC REG BUCK SYNC ADJ .3A DL 8DFN PDF资料下载
参数资料
| 型号： | LTC3547EDDB-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ .3A DL 8DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 300mA |
| 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： | 8-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN（3x2） |
LTC3547
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
V IN ............................................................... –0.3V to 6V
TOP VIEW
V FB1 , V FB2 ......................................... –0.3V to V IN +0.3V
RUN1, RUN2 ..................................... –0.3V to V IN +0.3V
SW1, SW2 (DC) ................................ –0.3V to V IN +0.3V
P-Channel Switch Source Current (DC) ...............500mA
V FB1 1
RUN1 2
V IN 3
SW1 4
9
8 V FB2
7 RUN2
6 SW2
5 GND
N-Channel Switch Sink Current (DC) ...................500mA
Peak SW Sink and Source Current (Note 5) .........700mA
Ambient Operating Temperature Range ... –40°C to 85°C
Maximum Junction Temperature .......................... 125°C
DDB PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 76°C/W
EXPOSED PAD (PIN 9) IS GND MUST BE SOLDERED TO PCB
Storage Temperature Range................... –65°C to 125°C
ORDER PART NUMBER
LTC3547EDDB
LTC3547EDDB-1
DDB PART MARKING
LCDP
LCPC
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.6V, unless otherwise noted.
SYMBOL
V IN
V UV
I FB
PARAMETER
V IN Operating Voltage
V IN Undervoltage Lockout
Feedback Pin Input Current
CONDITIONS
V IN Low to High
LTC3547, V FB = V FBREG
LTC3547-1, V FB = V FBREG
●
●
●
●
MIN
2.5
TYP
2.0
3
MAX
5.5
2.5
30
6
UNITS
V
V
nA
μA
V FBREG1
V FBREG2
Δ V LINEREG
Regulated Feedback Voltage (V FB1 )
Regulated Feedback Voltage (V FB2 )
Reference Voltage Line Regulation
LTC3547, 0°C ≤ T A ≤ 85°C
LTC3547, –40°C ≤ T A ≤ 85°C
LTC3547-1, 0°C ≤ T A ≤ 85°C
LTC3547-1, –40°C ≤ T A ≤ 85°C
LTC3547, 0°C ≤ T A ≤ 85°C
LTC3547, –40°C ≤ T A ≤ 85°C
LTC3547-1, 0°C ≤ T A ≤ 85°C
LTC3547-1, –40°C ≤ T A ≤ 85°C
V IN = 2.5V to 5.5V
●
●
●
●
0.590
0.588
1.770
1.764
0.590
0.588
1.180
1.176
0.600
0.600
1.800
1.800
0.600
0.600
1.200
1.200
0.3
0.610
0.612
1.830
1.836
0.610
0.612
1.220
1.224
0.5
V
V
V
V
V
V
V
V
%/V
Δ V LOADREG
Output Voltage Load Regulation
I LOAD = 0mA to 300mA
0.5
%
I S
Input DC Supply Current
Active Mode (Note 3)
Sleep Mode
Shutdown
V FB1 = V FB2 = 0.95V × V FBREG
V FB1 = V FB2 = 1.05V × V FBREG , V IN = 5.5V
RUN1 = RUN2 = 0V, V IN = 5.5V
450
40
0.1
700
60
1
μA
μA
μA
f OSC
I LIM
Oscillator Frequency
Peak Switch Current Limit
Channel 1 (300mA)
V FB = 0.6V
V IN = 3V, V FB < V FBREG , Duty Cycle < 35%
●
1.8
400
2.25
550
2.7
MHz
mA
Channel 2 (300mA)
400
550
mA
3547fa
2
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3548IMSE#TRPBF | IC REG BUCK SYNC ADJ DL 10MSOP |
| LTC3549EDCB#TRPBF | IC REG BUCK SYNC ADJ 0.25A 6DFN |
| LTC3550EDHC-1#TRPBF | IC CHARGER BATT DUAL 16-DFN |
| LTC3552EDHC-1#TRPBF | IC CHARGER BATT LI-ION 16-DFN |
| LTC3559EUD-1#TRPBF | IC USB BATTERY CHARGER 16-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3548 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous,400mA/800mA, 2.25MHz Step-Down DC/DC Regulator |
| LTC3548-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous, Fixed Output 2.25MHz Step-Down DC/DC Regulator |
| LTC3548-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous, Fixed/Adjustable Output, 2.25MHz Step-Down DC/DC Regulator |
| LTC3548A | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator |
| LTC3548AEDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator |
发布紧急采购，3分钟左右您将得到回复。