LTC3406B-1.8 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3406B-1.8' PDF : 16 Pages View PDF
LTC3406B
ABSOLUTE AXI U RATI GS (Note 1)
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
Peak SW Sink and Source Current ........................ 1.3A
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Notes 3, 6) ...................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
RUN 1
GND 2
SW 3
5 VFB
4 VIN
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W
ORDER PART
NUMBER
LTC3406BES5
S5 PART MARKING
LTE2
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
RUN 1
GND 2
SW 3
5 VOUT
4 VIN
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W
ORDER PART
NUMBER
LTC3406BES5-1.5
LTC3406BES5-1.8
S5 PART MARKING
LTE3
LTE4
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VIN = 3.6V unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
IVFB
Feedback Current
VFB
Regulated Feedback Voltage
LTC3406B (Note 4) TA = 25°C
LTC3406B (Note 4) 0°C ≤ TA ≤ 85°C
LTC3406B (Note 4) –40°C ≤ TA ≤ 85°C
∆VFB
Reference Voltage Line Regulation VIN = 2.5V to 5.5V (Note 4)
VOUT
Regulated Output Voltage
LTC3406B-1.5
LTC3406B-1.8
●
±30
0.5880 0.6 0.6120
0.5865 0.6 0.6135
● 0.5850 0.6 0.6150
●
0.04
0.4
● 1.455 1.500 1.545
● 1.746 1.800 1.854
∆VOVL
∆VOUT
IPK
Output Overvoltage Lockout
Output Voltage Line Regulation
Peak Inductor Current
∆VOVL = VOVL – VFB, LTC3406B
∆VOVL = VOVL – VOUT, LTC3406B-1.5/LTC3406B-1.8
20
50
80
2.5
7.8
13
VIN = 2.5V to 5.5V
●
0.04
0.4
VIN = 3V, VFB = 0.5V or VOUT = 90%,
Duty Cycle < 35%
0.75
1
1.25
VLOADREG
VIN
IS
fOSC
Output Voltage Load Regulation
Input Voltage Range
Input DC Bias Current
Shutdown
Oscillator Frequency
RPFET
RNFET
ILSW
RDS(ON) of P-Channel FET
RDS(ON) of N-Channel FET
SW Leakage
(Note 5)
VFB = 0.5V or VOUT = 90%
VRUN = 0V, VIN = 4.2V
VFB = 0.6V or VOUT = 100%
VFB = 0V or VOUT = 0V
ISW = 100mA
ISW = –100mA
VRUN = 0V, VSW = 0V or 5V, VIN = 5V
● 2.5
0.5
5.5
300 400
0.1
1
● 1.2
1.5
1.8
210
0.4
0.5
0.35 0.45
±0.01 ±1
2
UNITS
nA
V
V
V
%/V
V
V
mV
%
%
A
%/V
V
µA
µA
MHz
kHz
Ω
Ω
µA
3406bfa
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