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| 型号： | LT3759HMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/32页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST INV PWM 12-MSOP |
| 标准包装： | 37 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1MHz |
| 电源电压： | 1.6 V ~ 42 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 是 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 12-TSSOP （0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 管件 |
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LT3759
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C, V IN = 12V, EN/UVLO = 12V, INTV CC = 4.75V, unless otherwise noted.
PARAMETER
V IN LDO Dropout Voltage (V IN – V INTVcc )
INTV CC Undervoltage Lockout Threshold Falling
INTV CC Current in Shutdown
CONDITIONS
V IN = 3V, DRIVE = 0V,
I INTVCC = 20mA
EN/UVLO = 0V
l
MIN
TYP
190
1.3
22
MAX
400
1.45
UNITS
mV
V
μA
Logic
EN/UVLO Threshold Voltage Falling
l
1.17
1.22
1.27
V
EN/UVLO Rising Hysteresis
20
mV
EN/UVLO Input Low Voltage
I VIN < 1μA
0.4
V
EN/UVLO Pin Bias Current Low
EN/UVLO Pin Bias Current High
FBX Power Good Threshold Voltage
FBX Overvoltage Threshold
PGOOD Output Low (V OL )
PGOOD Leakage Current
INTV CC Minimum Voltage to Enable PGOOD Function
INTV CC Minimum Voltage to Enable SYNC Function
EN/UVLO = 1.15V
EN/UVLO = 1.30V
FBX > 0V, PGOOD Falling
FBX < 0V, PGOOD Falling
FBX > 0V, PGOOD Rising
FBX < 0V, PGOOD Rising
I PGOOD = 250μA
PGOOD = 42V
l
l
1.8
2.4
2.4
2.2
10
V FBX(REG) – 0.08
V FBX(REG) + 0.04
V FBX(REG) + 0.12
V FBX(REG) – 0.06
210
2.7
2.7
2.6
100
300
1
3.0
3.0
μA
nA
V
V
V
V
mV
μA
V
V
NMOS Gate Drivers
GATE Output Rise Time (T R )
GATE Output Fall Time (T F )
GATE Output Low (V OL )
GATE Output High (V OH )
C L = 3300pF
C L = 3300pF
INTV CC – 0.05
20
20
0.05
ns
ns
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: For V IN below 4V, the EN/UVLO pin must not exceed V IN for proper
operation.
Note 3: This pin is for switching purposes. Do not tie directly to a supply.
Note 4: The LT3759E is guaranteed to meet performance specifications
from the 0°C to 125°C operating junction temperature range.
Specifications over the –40°C to 125°C operating junction temperature
range are assured by design, characterization and correlation with
statistical process controls. The LT3759I is guaranteed over the full
–40°C to 125°C operating junction temperature range. The LT3759H is
guaranteed over the full –40°C to 150°C operating junction temperature
range. High junction temperatures degrade operating lifetimes. Operating
lifetime is derated at junction temperatures greater than 125°C.
Note 5: The LT3759 is tested in a feedback loop which servos V FBX to the
reference voltages (1.6V and –0.8V) with the VC pin forced to 1.3V.
Note 6: Rise and fall times are measured at 10% and 90% levels.
3759fc
4
For more information www.linear.com/3759
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| LT3759IMSE#PBF | 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LT3759IMSE#TRPBF | 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
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