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| 型号： | LTC3417AIFE-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ DL 20TSSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.5MHz，600kHz ~ 4MHz |
| 电流 - 输出： | 1A，1.5A |
| 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： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 20-TSSOP-EP |
LTC3417A-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 = 3.6V unless otherwise speci?ed (Note 2).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V FB1 , V FB2
Δ V LINEREG
Feedback Voltage
Reference Voltage Line Regulation. %/V
(Note 3)
V IN = 2.25V to 5V (Note 3)
l
0.784
0.8
0.02
0.816
0.2
V
%/V
is the Percentage Change in V OUT with a
Change in V IN
Δ V LOADREG
g m(EA)
Output Voltage Load Regulation
Error Ampli?er Transconductance
I TH1 , I TH2 = 0.36V (Note 3)
I TH1 , I TH2 = 0.84V (Note 3)
I TH1 , I TH2(PINLOAD) = ±5μA (Note 3)
0.02
–0.02
1400
0.2
–0.2
%
%
μS
I S
Input DC Supply Current (Note 4)
Active Mode
V FB1 = V FB2 = 0.75V, V SYNC/MODE = V IN ,
400
600
μA
V RUN1 = V RUN2 = V IN
I S
Half Active Mode (V RUN2 = 0V, 1.5A Only) V FB1 = 0.75V, V SYNC/MODE = V IN , V RUN1 = V IN
260
400
μA
Half Active Mode (V RUN1 = 0V, 1A Only)
Both Channels in Sleep Mode
V FB2 = 0.75V, V SYNC/MODE = V IN , V RUN2 = V IN
V FB1 = V FB2 = 1V, V SYNCMODE = V IN , V RUN1 =
260
125
400
250
μA
μA
V RUN2 = V IN
Shutdown
V RUN1 = V RUN2 = 0V
0.01
1
μA
f OSC
Oscillator Frequency
V FREQ = V IN
V FREQ : R T = 143k
1.2
0.85
1.5
1
1.8
1.25
MHz
MHz
V FREQ : Resistor (Note 6)
4
MHz
I LIM1
I LIM2
R DS(ON)1
R DS(ON)2
Peak Switch Current Limit on SW1 (1.5A)
Peak Switch Current Limit on SW2 (1A)
SW1 Top Switch On-Resistance (1.5A)
SW1 Bottom Switch On-Resistance
SW2 Top Switch On-Resistance (1A)
SW2 Bottom Switch On-Resistance
V IN1 = 3.6V (Note 5)
V IN1 = 3.6V (Note 5)
V IN2 = 3.6V (Note 5)
V IN2 = 3.6V (Note 5)
2.1
1.4
2.5
1.7
0.088
0.084
0.16
0.15
A
A
Ω
Ω
Ω
Ω
I SW1(LKG)
I SW2(LKG)
Switch Leakage Current SW1 (1.5A)
Switch Leakage Current SW2 (1A)
V IN1 = 6V, V RUN1 = 0V
V IN2 = 6V, V RUN2 = 0V
0.01
0.01
1
1
μA
μA
V UVLO
V TH( POR )
Undervoltage Lockout Threshold
Power-On-Reset Threshold
V IN1 , V IN2 Ramping Down
V IN1 , V IN2 Ramping Up
V FB1 or V FB2 Ramping Up
1.9
1.95
2.07
2.12
–6
2.2
2.25
V
V
%
Percentage Deviation of V FB Voltage from
Steady State Value (Typically 0.8V)
V FB1 or V FB2 Ramping Down
–8
%
R POR
t POR
Power-On-Reset Pull Down On-Resistance
Power-On-Reset De-Assertion Delay from FREQ = V IN
120
212,992
300
Ω
Clock
Fault Removal
Cycles
FREQ Tied to GND Through 143k Resistor
294,912
Clock
Cycles
V RUN1, V RUN2
V PHASE
RUN1, RUN2 Threshold
PHASE Threshold High-CMOS Levels
0.3
V IN –0.5
0.85
1.5
V
V
PHASE Threshold Low-CMOS Levels
0.5
V
I RUN1, I RUN2, I PHASE, RUN1, RUN2, PHASE and SYNC/MODE
V IN = 6V, Pin Under Test = 3V
±0.01
±1
μA
I SYNC/MODE
Leakage Current
VTL SYNC/MODE
VTH SYNC/MODE
VTH FREQ
SYNC/MODE Threshold Voltage Low
SYNC/MODE Threshold Voltage High
FREQ Threshold Voltage High
V IN –0.5
V IN –0.5
0.5
V
V
V
3417a1fa
3
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相关代理商/技术参数 |
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|---|---|
| LTC3417AIFE-2#PBF | 功能描述:IC REG BUCK SYNC ADJ DL 20TSSOP 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3417AIFE-2#TRPBF | 功能描述:IC REG BUCK SYNC ADJ DL 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3417AIFE-2-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator |
| LTC3417AIFE-2-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator |
| LTC3417AIFEPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Step-Down 5.5V TSSOP20EP |
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