参数资料
型号: LTC3403EDD#TRPBF
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 8DFN
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: 0.3 V ~ 3.5 V
输入电压: 2.5 V ~ 5 V
PWM 型: 电流模式,混合
频率 - 开关: 1.5MHz
电流 - 输出: 600mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN-EP(3x3)
LTC3403
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Input Supply Voltage (< 300 μ s) .................. – 0.3V to 6V
ORDER PART
Input Supply Voltage (DC) ....................... – 0.3V to 5.5V
TOP VIEW
NUMBER
RUN, REF, MODE, V OUT , GDR Voltages ..... – 0.3V to V IN
SW Voltage .................................. – 0.3V to (V IN + 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
GDR
V IN
GND
SW
1
2
3
4
9
8
7
6
5
V OUT
REF
MODE
RUN
LTC3403EDD
LAAX
Peak SW Sink and Source Current ........................ 1.3A
Bypass P-Channel FET Source Current ...................... 1A
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
Junction Temperature (Note 3) ............................ 125 ° C
Storage Temperature Range ................ – 65 ° C to 150 ° C
(DD Package) .................................... –65 ° C to 125 ° C
DD PACKAGE DD PART MARKING
8-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED PAD IS GND (PIN 9)
MUST BE SOLDERED TO PCB
T JMAX = 125 ° C, θ JA = 43 ° C/ W, θ JC = 3 ° C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are T A = 25 ° C.
V IN = 3.6V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V OUT
Regulated Output Voltage
V REF = 1.1V, MODE = V IN
V REF = 0.1V, MODE = V IN
q
q
3.23
0.25
3.3
0.3
3.37
0.35
V
V
? V OUT
I PK
Output Voltage Line Regulation
Peak Inductor Current
V IN = 2.5V to 5V
V IN = 3V, V REF = 0.9V
q
0.70
0.1
1
0.4
1.25
%/V
A
V LOADREG
Output Voltage Load Regulation
0.7
%
V IN
I S
Input Voltage Range
Input DC Operating Current
Burst Mode Operation
Forced Continuous Mode Operation
Shutdown
MODE = 0V, SW = Open
MODE = V IN , SW = Open
V RUN = 0V, V IN = 4.2V
q
2.5
20
1.5
0.1
5
35
2.5
1
V
μ A
mA
μ A
f OSC
V REF
Oscillator Frequency
Bypass PFET Turn-Off Threshold
V REF ≥ 0.25V
V REF ≤ 0.1V
V REF =
q
1.2
550
1.167
1.5
700
1.2
1.8
850
MHz
kHz
V
Bypass PFET Turn-On Threshold
V REF =
1.21
1.26
V
R PFET
R NFET
R BYPASS
I LSW
I LBYP
R DS(ON) of P-Channel FET
R DS(ON) of N-Channel FET
R DS(ON) of Bypass P-Channel FET
SW Leakage
Bypass PFET Leakage
I SW = 160mA, Wafer Level
I SW = 160mA, DD Package
I SW = –160mA, Wafer Level
I SW = –160mA, DD Package
I OUT = 100mA, V IN = 3V, Wafer Level
I OUT = 100mA, V IN = 3V, DD Package (Note 4)
V RUN = 0V, V SW = 0V or 5V, V IN = 5V
V OUT = 0V, V IN = 5V, V REF = 0V
0.3
0.4
0.3
0.4
0.15
0.20
± 0.01
± 0.01
0.4
0.4
0.18
± 1
± 1
?
?
?
?
?
?
μ A
μ A
V RUN
RUN Threshold
q
0.3
1
1.5
V
I RUN
RUN Input Current
V RUN = 2.5V or 0V
q
± 0.01
± 1
μ A
V MODE
I MODE
I REF
MODE Threshold
MODE Input Current
REF Input Current
q
q
q
0.3
1.5
± 0.01
± 0.01
2
± 1
± 1
V
μ A
μ A
3403f
2
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