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参数资料
| 型号： | LTC3404MPMS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.6A 8MSOP |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 6 V |
| 输入电压： | 2.65 V ~ 6 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.4MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-MSOP |
LTC3404
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Input Supply Voltage (V IN )........................... – 0.3V to 7V
I TH , PLL LPF Voltage ................................ – 0.3V to 2.7V
RUN, V FB Voltages ...................................... – 0.3V to V IN
SYNC/MODE Voltage .................................. – 0.3V to V IN
SW Voltage (DC) .......................... – 0.3V to (V IN + 0.3V)
P-Channel MOSFET Source Current (DC) ........... 800mA
TOP VIEW
RUN 1 8 PLL LPF
I TH 2 7 SYNC/MODE
V FB 3 6 V IN
GND 4 5 SW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T JMAX = 125 ° C, θ JA = 125 ° C/W
N-Channel MOSFET Sink Current (DC) ............... 800mA
Peak SW Sink and Source Current ........................ 1.5A
ORDER PART NUMBER
MS8 PART MARKING
Operating Temperature Range (Note 2)
LTC3404E/LTC3404I ........................... –40 ° C to 85 ° C
LTC3404MP ...................................... –55 ° C to 125 ° C
Junction Temperature (Note 3) ............................ 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
LTC3404EMS8 LTKR
LTC3404IMS8 LTCJR
LTC3404MPMS8 LTCXG
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over –40 ° C to 85 ° C, otherwise specifications are TA = 25 ° C.
V IN = 3.6V unless otherwise specified.
SYMBOL
I VFB
PARAMETER
Feedback Current
CONDITIONS
(Note 4)
●
MIN
TYP
4
MAX
30
UNITS
nA
V FB
Δ V OVL
Δ V FB
V LOADREG
Regulated Output Voltage
Output Overvoltage Lockout
Reference Voltage Line Regulation
Output Voltage Load Regulation
(Note 4) 0 ° C ≤ T A ≤ 85 ° C
(Note 4) – 40 ° C ≤ T A ≤ 85 ° C
Δ V OVL = V OVL – V FB
V IN = 2.65V to 6V (Note 4)
Measured in Servo Loop; V ITH = 0.9V to 1.2V
Measured in Servo Loop; V ITH = 1.6V to 1.2V
●
●
●
●
0.784
0.74
20
0.8
0.8
50
0.05
0.1
– 0.1
0.816
0.84
110
0.2
0.5
– 0.5
V
V
mV
%/V
%
%
V IN
I Q
Input Voltage Range
Input DC Bias Current
Pulse Skipping Mode
Burst Mode Operation
Shutdown
(Note 5)
2.65V < V IN < 6V, V SYNC/MODE = 0V, I OUT = 0A
V SYNC/MODE = V IN , I OUT = 0A
V RUN = 0V, V IN = 6V
●
2.65
400
10
0
6
700
15
1
V
μ A
μ A
μ A
f OSC
Oscillator Frequency
V FB = 0.8V
●
1.25
1.4
1.65
MHz
V FB = 0V
200
kHz
f SYNC
SYNC Capture Range
1.0
1.7
MHz
I PLL LPF
R PFET
R NFET
I PK
I LSW
Phase Detector Output Current
Sinking Capability
Sourcing Capability
R DS(ON) of P-Channel MOSFET
R DS(ON) of N-Channel MOSFET
Peak Inductor Current
SW Leakage
f PLLIN < f OSC
f PLLIN > f OSC
I SW = 100mA
I SW = –100mA
V IN = 3.3V, V FB = 0.7V, Duty Cycle < 35%
V RUN = 0V, V SW = 0V or 6V, V IN = 6V
●
●
6
–6
0.8
20
–20
0.5
0.6
1.0
± 0.01
40
–40
0.7
0.8
1.25
± 1
μ A
μ A
Ω
Ω
A
μ A
V SYNC/MODE SYNC/MODE Threshold
I SYNC/MODE
SYNC/MODE Leakage Current
V SYNC/MODE Rising
●
0.3
1.0
± 0.01
1.5
± 1
V
μ A
V RUN
RUN Threshold
V RUN Rising
●
0.3
0.7
1.5
V
I RUN
RUN Input Current
± 0.01
± 1
μ A
3404fb
2
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