Datasheet

2
LTC34 06
LTC34 06 -1.5/LTC34 06 -1.8
3406fa
LTC3406ES5
T
JMAX
= 125°C, θ
JA
= 250°C/ W, θ
JC
= 90°C/ W
ORDER PART
NUMBER
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V
FB
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
S5 PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTA5
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
RUN 1
GND 2
SW 3
5 V
FB
4 V
IN
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
T
JMAX
= 125°C, θ
JA
= 250°C/ W, θ
JC
= 90°C/ W
RUN 1
GND 2
SW 3
5 V
OUT
4 V
IN
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VFB
Feedback Current ● ±30 nA
V
FB
Regulated Feedback Voltage LTC3406 (Note 4) T
A
= 25°C 0.5880 0.6 0.6120 V
LTC3406 (Note 4) 0°C T
A
≤ 85°C 0.5865 0.6 0.6135 V
LTC3406 (Note 4) –40°C ≤ T
A
≤ 85°C ● 0.5850 0.6 0.6150 V
∆V
FB
Reference Voltage Line Regulation V
IN
= 2.5V to 5.5V (Note 4) ● 0.04 0.4 %/V
V
OUT
Regulated Output Voltage LTC3406-1.5, I
OUT
= 100mA ● 1.455 1.500 1.545 V
LTC3406-1.8, I
OUT
= 100mA ● 1.746 1.800 1.854 V
∆V
OUT
Output Voltage Line Regulation V
IN
= 2.5V to 5.5V ● 0.04 0.4 %/V
I
PK
Peak Inductor Current V
IN
= 3V, V
FB
= 0.5V or V
OUT
= 90%, 0.75 1 1.25 A
Duty Cycle < 35%
V
LOADREG
Output Voltage Load Regulation 0.5 %
V
IN
Input Voltage Range ● 2.5 5.5 V
I
S
Input DC Bias Current (Note 5)
Active Mode V
FB
= 0.5V or V
OUT
= 90%, I
LOAD
= 0A 300 400 µA
Sleep Mode V
FB
= 0.62V or V
OUT
= 103%, I
LOAD
= 0A 20 35 µA
Shutdown V
RUN
= 0V, V
IN
= 4.2V 0.1 1 µA
f
OSC
Oscillator Frequency V
FB
= 0.6V or V
OUT
= 100% ● 1.2 1.5 1.8 MHz
V
FB
= 0V or V
OUT
= 0V 210 kHz
R
PFET
R
DS(ON)
of P-Channel FET I
SW
= 100mA 0.4 0.5 Ω
R
NFET
R
DS(ON)
of N-Channel FET I
SW
= –100mA 0.35 0.45 Ω
I
LSW
SW Leakage V
RUN
= 0V, V
SW
= 0V or 5V, V
IN
= 5V ±0.01 ±1 µA
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
IN
= 3.6V unless otherwise specified.
ELECTRICAL CHARACTERISTICS