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参数资料
| 型号： | LT1934IDCB-1 |
| 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： | 16/20页 |
| 文件大小： | 234K |
| 代理商： | LT1934IDCB-1 |
LT1934/LT1934-1
5
1934fe
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Input Voltage
VOUT = 5V
Quiescent Current
vs Temperature
Undervoltage Lockout
vs Temperature
Minimum Input Voltage
VOUT = 3.3V
TEMPERATURE (°C)
–50
0
QUIESCENT
CURRENT
(μA)
5
10
15
20
–25
0
25
50
1934 G10
75
100
125
TEMPERATURE (°C)
–50
2.0
UVLO
(V)
2.5
3.0
3.5
4.0
–25
0
25
50
1934 G11
75
100
125
LOAD CURRENT (mA)
3.5
INPUT
VOLTAGE
(V)
4.0
4.5
5.0
5.5
6.0
0.1
10
100
1934 G12
3.0
1
LT1934
VOUT = 3.3V
TA = 25°C
BOOST DIODE TIED TO OUTPUT
VIN TO START
VIN TO RUN
LOAD CURRENT (mA)
5
INPUT
VOLTAGE
(V)
6
7
8
0.1
10
100
1934 G13
4
1
LT1934
VOUT = 5V
TA = 25°C
BOOST DIODE TIED TO OUTPUT
VIN TO START
VIN TO RUN
PIN FUNCTIONS
BOOST (Pin 1/Pin 1): The BOOST pin is used to provide a
drive voltage, higher than the input voltage, to the internal
bipolar NPN power switch.
GND (Pin 2/Pin 5): Tie the GND pin to a local ground plane
below the LT1934 and the circuit components. Return the
feedback divider to this pin.
FB (Pin 3/Pin 6): The LT1934 regulates its feedback pin
to 1.25V. Connect the feedback resistor divider tap to this
pin. Set the output voltage according to VOUT = 1.25V
(1 + R1/R2) or R1 = R2 (VOUT/1.25 – 1).
SHDN(Pin4/Pin4):TheSHDNpinisusedtoputtheLT1934
in shutdown mode. Tie to ground to shut down the LT1934.
Apply 2.3V or more for normal operation. If the shutdown
feature is not used, tie this pin to the VIN pin.
VIN (Pin 5/Pin 3): The VIN pin supplies current to the
LT1934’s internal regulator and to the internal power
switch. This pin must be locally bypassed.
SW (Pin 6/Pin 2): The SW pin is the output of the internal
power switch. Connect this pin to the inductor, catch diode
and boost capacitor.
Exposed Pad (Pin 7, DFN Package): This pin must be
soldered to ground plane.
(TSOT-23/DFN)
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| 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 |
| LT1934IS6 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Step-Down Switching Regulators in ThinSOT |
| LT1934IS6#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.2V to 34V 6-Pin TSOT-23 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Cut Tape 300mA (Iout), Micropower Step-Down |
| LT1934IS6#TR | 功能描述:IC REG BUCK ADJ 0.3A SOT23-6 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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