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| 型号： | LT1934IS6-1#TR |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 60MA SOT23-6 |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 28 V |
| 输入电压： | 3.2 V ~ 34 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 60mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-23-6 |
LT1934/LT1934-1
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 10V, V BOOST = 15V, unless otherwise noted.
SYMBOL
Undervoltage Lockout
CONDITIONS
–40°C ≤ T A ≤ 85°C
–40°C ≤ T A ≤ 125°C
l
l
MIN
TYP
3
3
3
MAX
3.2
3.6
3.6
UNITS
V
V
V
Quiescent Current
V FB = 1.3V
–40°C ≤ T A ≤ 85°C
–40°C ≤ T A ≤ 125°C
l
l
12
12
12
22
26
26
μA
μA
μA
V SHDN = 0V
0.01
2
μA
FB Comparator Trip Voltage
V FB Falling
–40°C ≤ T A ≤ 85°C
–40°C ≤ T A ≤ 125°C
l
l
1.22
1.21
1.25
1.25
1.27
1.27
V
V
FB Comparator Hysteresis
10
mV
FB Pin Bias Current
V FB = 1.25V
–40°C ≤ T A ≤ 85°C
–40°C ≤ T A ≤ 125°C
l
l
2
2
±15
±60
nA
nA
FB Voltage Line Regulation
4V < V IN < 34V
0.007
%/V
Switch Off Time
V FB > 1V
1.4
1.8
2.3
μs
V FB = 0V
12
μs
Maximum Duty Cycle
V FB = 1V
–40°C ≤ T A ≤ 85°C
–40°C ≤ T A ≤ 125°C
l
l
85
83
88
88
%
%
Switch V CESAT
I SW = 300mA (LT1934, S6 Package)
I SW = 300mA (LT1934, DCB Package)
I SW = 75mA (LT1934-1, S6 Package)
I SW = 75mA (LT1934-1, DCB Package)
200
225
65
70
300
120
mV
mV
mV
mV
Switch Current Limit
BOOST Pin Current
Minimum Boost Voltage (Note 3)
LT1934
LT1934-1
I SW = 300mA (LT1934)
I SW = 75mA (LT1934-1)
I SW = 300mA (LT1934)
I SW = 75mA (LT1934-1)
350
90
400
120
8.5
6.0
1.8
1.7
490
160
12
10
2.5
2.5
mA
mA
mA
mA
V
V
Switch Leakage Current
2
μA
SHDN Pin Current
V SHDN = 2.3V
0.5
μA
V SHDN = 34V
1.5
5
μA
SHDN Input Voltage High
SHDN Input Voltage Low
2.3
0.25
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: The LT1934E and LT1934E-1 are guaranteed to meet performance
operating temperature range are assured by design, characterization and
correlation with statistical process controls. The LT1934I and LT1934I-1
speci?cations 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.
speci?cations from 0°C to 85°C. Speci?cations over the –40°C to 85°C
1934fe
3
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| LT1935ES5#TR | 功能描述:IC REG BST FLYBK SEPIC TSOT23-5 RoHS:否 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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