参数资料
型号: LT1934IDCB#TRMPBF
厂商: Linear Technology
文件页数: 5/20页
文件大小: 0K
描述: IC REG BUCK ADJ 0.3A 6DFN
标准包装: 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: 300mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 6-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 6-DFN-EP(2x3)
LT1934/LT1934-1
TYPICAL PERFORMANCE CHARACTERISTICS
20
15
10
5
0
Quiescent Current
vs Temperature
4.0
3.5
3.0
2.5
2.0
Undervoltage Lockout
vs Temperature
–50
–25
0 25 50
75
100
125
–50
–25
0 25 50
75
100
125
TEMPERATURE (°C)
Minimum Input Voltage
V OUT = 3.3V
1934 G10
TEMPERATURE (°C)
Minimum Input Voltage
V OUT = 5V
1934 G11
6.0
LT1934
8
LT1934
V OUT = 3.3V
5.5 T A = 25°C
BOOST DIODE TIED TO OUTPUT
V OUT = 5V
T A = 25°C
7 BOOST DIODE TIED TO OUTPUT
5.0
V IN TO START
V IN TO START
4.5
4.0
3.5
3.0
V IN TO RUN
6
5
4
V IN TO RUN
0.1
1
10 100
0.1
1
10 100
LOAD CURRENT (mA)
1934 G12
LOAD CURRENT (mA)
1934 G13
PIN FUNCTIONS
(TSOT-23/DFN)
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 V OUT = 1.25V
(1 + R1/R2) or R1 = R2 (V OUT /1.25 – 1).
SHDN (Pin 4/Pin 4): The SHDN pin is used to put the LT1934
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 V IN pin.
VIN (Pin 5/Pin 3): The V IN 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.
1934fe
5
相关PDF资料
PDF描述
MAX6868UK37D4S+T IC MPU SUPERVISOR SOT23-5
LT1934IS6#TRMPBF IC REG BUCK ADJ 0.3A SOT23-6
LT1934IS6-1#TRMPBF IC REG BUCK ADJ 60MA SOT23-6
MAX6868UK37D3L+T IC MPU SUPERVISOR SOT23-5
LT1776CS8 IC REG BUCK ADJ 0.7A 8SOIC
相关代理商/技术参数
参数描述
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
LT1934IS6#TRM 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: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#TRMPBF 功能描述:IC REG BUCK ADJ 0.3A SOT23-6 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