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参数资料
| 型号： | LT3472EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV ADJ 50MA 10DFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 ±34V |
| 输入电压： | 2.2 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.1MHz |
| 电流 - 输出： | 50mA |
| 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LT3472
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
V IN , SHDN Voltage ................................................... 16V
SWP, SWN, V POS Voltage ....................................... 36V
DN Voltage ............................................................ –36V
FBP, FBN, SSP, SSN Voltage ................................... 10V
Maximum Junction Temperature .......................... 125 ° C
SWP
V IN
SHDN
SWN
DN
1
2
3
4
5
TOP VIEW
11
10 V POS
9 SSP
8 FBP
7 SSN
6 FBN
ORDER PART
NUMBER
LT3472EDD
Operating Temperature Range
Extended Commercial ......................... –40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 125 ° C
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125 ° C, θ JA = 43 ° C/W, θ JC = 3 ° C/W
EXPOSED PAD IS GND (PIN 11)
DFN PART
MARKING
LBGC
MUST BE SOLDERED TO PCB
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 = 3V, SHDN = 3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Operation Voltage
Maximum Operation Voltage
2.2
16
V
V
Supply Current
SHDN = 3V, Not Switching
2.8
mA
SHDN = 0V
0.1
1
μ A
SHDN Voltage High
SHDN Voltage Low
SHDN Pin Bias Current
SHDN = 3V
●
●
0.8
35
0.3
V
V
μ A
Positive Feedback Voltage
Negative Feedback Voltage
●
●
1.2
–5
1.25
0
1.3
5
V
mV
Positive Feedback Voltage Line Regulation
Negative Feedback Voltage Line Regulation
0.01
0.008
%/V
mV/V
FBP Current
FBN Current
FBP to Start Negative Channel
Switching Frequency
Maximum Duty Cycle (Both Channels)
Positive Channel Switch Current Limit
Negative Channel Switch Current Limit
FBP = V FBP
FBN = V FBN
●
●
●
●
●
24.5
24.5
1.02
0.9
88
250
300
25
25
1.1
1.1
92
350
400
25.3
25.3
1.18
1.4
μ A
μ A
V
MHz
%
mA
mA
Positive Channel Switch V CESAT
Negative Channel Switch V CESAT
I SWP = 200mA
I SWN = 200mA
245
400
mV
mV
Switch Leakage Current (Both Channels)
Schottky DP Forward Drop
Schottky DN Forward Drop
Schottky Leakage Current (Both Channels)
V SW = 5V
I DP = 150mA
I DN = 150mA
V R = 36V
0.01
700
750
5
950
1000
4
μ A
mV
mV
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3472E is guaranteed to meet specified performance from
0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating range are
assured by design, characterization and correlation with statistical process
controls.
3472f
2
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| LT3473AEDE#PBF | 功能描述:IC REG BOOST ADJ 1A 12DFN 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 |
| LT3473AEDE#TRPBF | 功能描述:IC REG BOOST ADJ 1A 12DFN 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 |
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