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参数资料
| 型号： | LTC3443EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC ADJ 12DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.4 V ~ 5.25 V |
| 输入电压： | 2.4 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 1.2A |
| 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： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 12-DFN（4x3） |
LTC3443
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V IN , V OUT Voltage........................................ – 0.3V to 6V
SW1, SW2 Voltage
DC ........................................................... – 0.3V to 6V
Pulsed < 100ns ...................................... – 0.3V to 7V
SHDN/SS, MODE/SYNC Voltage ................. – 0.3V to 6V
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
Maximum Junction Temperature (Note 4) ........... 125 ° C
Storage Temperature Range ................ – 65 ° C to 125 ° C
TOP VIEW
SHDN/SS 1 12 FB
GND 2 11 V C
PGND 3 10 V IN
13
SW1 4 9 PV IN
SW2 5 8 V OUT
PGND 6 7 MODE/SYNC
DE12 PACKAGE
12-LEAD (4mm × 3mm) PLASTIC DFN
T JMAX = 125 ° C
θ JA = 53 ° C/W 1-LAYER BOARD
θ JA = 43 ° C/W 4-LAYER BOARD
θ JC = 4.3 ° C/W
ORDER PART
NUMBER
LTC3443EDE
DE PART MARKING
3443
EXPOSED PAD IS PGND (PIN 13)
MUST BE SOLDERED TO PCB
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 specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = V OUT = 3.6V,unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Start-Up Voltage
Output Voltage Adjust Range
●
●
2.4
2.3
2.4
5.25
V
V
Feedback Voltage
Feedback Input Current
Quiescent Current—Burst Mode Operation
Quiescent Current—SHDN
Quiescent Current—Active
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
Input Current Limit
V FB = 1.22V
V C = 0V, MODE/SYNC = 3V (Note 3)
V OUT = SHDN = 0V, Not Including Switch Leakage
MODE/SYNC = 0V (Note 3)
Switches B and C
Switches A and D
Switches B and C
Switches A and D
●
●
1.19
2
1.22
1
28
0.1
520
0.1
0.1
0.10
0.11
3.2
1.25
50
45
1
900
7
10
V
nA
μ A
μ A
μ A
μ A
μ A
Ω
Ω
A
Max Duty Cycle
Boost (% Switch C On)
●
70
88
%
Min Duty Cycle
Buck (% Switch A In)
●
●
100
0
%
%
Frequency Accuracy
●
510
600
690
kHz
MODE/SYNC Threshold
MODE/SYNC Input Current
Error Amp AV OL
Error Amp Source Current
Error Amp Sink Current
V MODE/SYNC = 5.5V
●
0.4
0.01
90
14
300
1.4
1
V
μ A
dB
μ A
μ A
3443fa
2
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| LTC3444EDD#PBF | 功能描述:IC DC/DC CONV WCDMA 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC3444EDD#TRPBF | 功能描述:IC DC/DC CONV WCDMA 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| LTC3445 | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN |
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