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LTC3406 数据表(PDF) 2 Page - Linear Technology

部件名 LTC3406
功能描述  1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3406 数据表(HTML) 2 Page - Linear Technology

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LTC3406
LTC3406-1.5/LTC3406-1.8
3406fa
LTC3406ES5
TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W
ORDER PART
NUMBER
Input Supply Voltage .................................. – 0.3V to 6V
RUN, VFB Voltages ..................................... – 0.3V to VIN
SW Voltage .................................. – 0.3V to (VIN + 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
S5 PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTA5
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
RUN 1
GND 2
SW 3
5 VFB
4 VIN
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
(Note 1)
Peak SW Sink and Source Current ........................ 1.3A
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
LTC3406ES5-1.5
LTC3406ES5-1.8
ORDER PART
NUMBER
S5 PART MARKING
LTD6
LTC4
TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W
RUN 1
GND 2
SW 3
5 VOUT
4 VIN
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IVFB
Feedback Current
±30
nA
VFB
Regulated Feedback Voltage
LTC3406 (Note 4) TA = 25°C
0.5880
0.6
0.6120
V
LTC3406 (Note 4) 0°C TA ≤ 85°C
0.5865
0.6
0.6135
V
LTC3406 (Note 4) –40°C ≤ TA ≤ 85°C
0.5850
0.6
0.6150
V
∆VFB
Reference Voltage Line Regulation
VIN = 2.5V to 5.5V (Note 4)
0.04
0.4
%/V
VOUT
Regulated Output Voltage
LTC3406-1.5, IOUT = 100mA
1.455
1.500
1.545
V
LTC3406-1.8, IOUT = 100mA
1.746
1.800
1.854
V
∆VOUT
Output Voltage Line Regulation
VIN = 2.5V to 5.5V
0.04
0.4
%/V
IPK
Peak Inductor Current
VIN = 3V, VFB = 0.5V or VOUT = 90%,
0.75
1
1.25
A
Duty Cycle < 35%
VLOADREG
Output Voltage Load Regulation
0.5
%
VIN
Input Voltage Range
2.5
5.5
V
IS
Input DC Bias Current
(Note 5)
Active Mode
VFB = 0.5V or VOUT = 90%, ILOAD = 0A
300
400
µA
Sleep Mode
VFB = 0.62V or VOUT = 103%, ILOAD = 0A
20
35
µA
Shutdown
VRUN = 0V, VIN = 4.2V
0.1
1
µA
fOSC
Oscillator Frequency
VFB = 0.6V or VOUT = 100%
1.2
1.5
1.8
MHz
VFB = 0V or VOUT = 0V
210
kHz
RPFET
RDS(ON) of P-Channel FET
ISW = 100mA
0.4
0.5
RNFET
RDS(ON) of N-Channel FET
ISW = –100mA
0.35
0.45
ILSW
SW Leakage
VRUN = 0V, VSW = 0V or 5V, VIN = 5V
±0.01
±1
µA
The
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3.6V unless otherwise specified.
ELECTRICAL CHARACTERISTICS


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