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参数资料
| 型号： | LT1934IDCB |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.49 A SWITCHING REGULATOR, PDSO6 |
| 封装： | 2 X 3 MM, 0.80 MM HEIGHT, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 14/20页 |
| 文件大小： | 234K |
| 代理商： | LT1934IDCB |
LT1934/LT1934-1
3
1934fe
ELECTRICAL CHARACTERISTICS
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: The LT1934E and LT1934E-1 are guaranteed to meet performance
specications from 0°C to 85°C. Specications over the –40°C to 85°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Undervoltage Lockout
–40°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 125°C
l
3
3.2
3.6
V
Quiescent Current
VFB = 1.3V
–40°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 125°C
l
12
22
26
μA
VSHDN = 0V
0.01
2
μA
FB Comparator Trip Voltage
VFB Falling
–40°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 125°C
l
1.22
1.21
1.25
1.27
V
FB Comparator Hysteresis
10
mV
FB Pin Bias Current
VFB = 1.25V
–40°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 125°C
l
2
±15
±60
nA
FB Voltage Line Regulation
4V < VIN < 34V
0.007
%/V
Switch Off Time
VFB > 1V
VFB = 0V
1.4
1.8
12
2.3
μs
Maximum Duty Cycle
VFB = 1V
–40°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 125°C
l
85
83
88
%
Switch VCESAT
ISW = 300mA (LT1934, S6 Package)
ISW = 300mA (LT1934, DCB Package)
ISW = 75mA (LT1934-1, S6 Package)
ISW = 75mA (LT1934-1, DCB Package)
200
225
65
70
300
120
mV
Switch Current Limit
LT1934
LT1934-1
350
90
400
120
490
160
mA
BOOST Pin Current
ISW = 300mA (LT1934)
ISW = 75mA (LT1934-1)
8.5
6.0
12
10
mA
Minimum Boost Voltage (Note 3)
ISW = 300mA (LT1934)
ISW = 75mA (LT1934-1)
1.8
1.7
2.5
V
Switch Leakage Current
2μA
SHDN Pin Current
VSHDN = 2.3V
VSHDN = 34V
0.5
1.5
5
μA
SHDN Input Voltage High
2.3
V
SHDN Input Voltage Low
0.25
V
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 10V, VBOOST = 15V, unless otherwise noted.
operating temperature range are assured by design, characterization and
correlation with statistical process controls. The LT1934I and LT1934I-1
specications are guaranteed over the –40°C to 125°C temperature range.
Note 3: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the internal power switch.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1934IDCB#TRMPBF | 功能描述:IC REG BUCK ADJ 0.3A 6DFN 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 |
| LT1934IDCB#TRMPBF (CUT REEL) | 制造商:Linear Technology 功能描述: |
| LT1934IDCB#TRPBF | 功能描述:IC REG BUCK ADJ 0.3A 6DFN 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 |
| LT1934IDCB-1#TRMPBF | 功能描述:IC REG BUCK ADJ 60MA 6DFN 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 |
| LT1934IDCB-1#TRPBF | 功能描述:IC REG BUCK ADJ 60MA 6DFN 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 |
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