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参数资料
| 型号： | LTC3548IMSE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ DL 10MSOP |
| 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 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 400mA，800mA |
| 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： | 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 |
LTC3548
TYPICAL APPLICATIONS
V IN = 3.6V
TO 5.5V
1mm Pro?le Core and I/O Supplies
100
Ef?ciency vs Load Current
C1*
10μF
L2
RUN2 V IN
MODE/SYNC
LTC3548
RUN1
POR
R5
100k
POWER-ON
RESET
L1
95
90
85
3.3V
1.8V
V OUT2 = 3.3V
AT 400mA
4.7μH
C5, 68pF
SW2
SW1
2.2μH
C4, 33pF
V OUT1 = 1.8V
AT 800mA
80
75
70
C3
4.7μF
R4
887k
R3
196k
V FB2
GND
V FB1
R1
301k
R2
604k
C2
10μF
V IN = 5V
65 Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
60
3548 TA07
1
10 100
LOAD CURRENT (mA)
1000
3548 TA08
C1, C2: MURATA GRM219R60J106KE19
C3: MURATA GRM219R60J475KE19
L1: COILTRONICS LPO3310-222MX
L2: COILTRONICS LPO3310-472MX
*IF C1 IS GREATER THAN 3" FROM POWER SOURCE,
ADDITIONAL CAPACITANCE MAY BE REQUIRED.
PACKAGE DESCRIPTION
DD Package
10-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1699 Rev B)
0.70 0.05
R = 0.125
TYP
6
10
0.40
0.10
3.55 0.05 1.65 0.05
2.15 0.05 (2 SIDES)
PACKAGE
OUTLINE
3.00 0.10
(4 SIDES)
1.65 0.10
(2 SIDES)
PIN 1
TOP MARK
(SEE NOTE 6)
5
1
(DD) DFN REV B 0309
0.25
0.05
0.50
0.200 REF
0.75 0.05
0.25 0.05
0.50 BSC
BSC
2.38 0.10
NOTE:
2.38 0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
0.00 – 0.05
(2 SIDES)
BOTTOM VIEW—EXPOSED PAD
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION
OF (WEED-2). CHECK THE LTC WEBSITE DATA SHEET FOR CURRENT
STATUS OF VARIATION ASSIGNMENT
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE
TOP AND BOTTOM OF PACKAGE
3548fc
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3549 | 制造商:LINER 制造商全称:Linear Technology 功能描述:250mA Low VIN Buck Regulator in 2mm × 3mm DFN |
| LTC3549EDCB | 制造商:LINER 制造商全称:Linear Technology 功能描述:250mA Low VIN Buck Regulator in 2mm × 3mm DFN |
| LTC3549EDCB#PBF | 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR BUCK 2.25M 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR, BUCK, 2.25MHZ, 250mA, DFN-6; Primary Input Voltage:5.5V; No. of Outputs:1; Output Current:250mA; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-DFN ;RoHS Compliant: Yes |
| LTC3549EDCB#TRM | 制造商:Linear Technology 功能描述:250MA, LOW VIN BUCK REGULATOR |
| LTC3549EDCB#TRMPBF | 功能描述:IC REG BUCK SYNC ADJ 0.25A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 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:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
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