2
LTC3410-1.875
34101875f
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VOUT
Output Voltage Feedback Current ● 3.3 6 µA
I
PK
Peak Inductor Current V
IN
= 3V, V
OUT
= 1.64V, Duty Cycle < 35% 380 500 mA
V
OUT
Regulated Output Voltage ● 1.837 1.875 1.913 V
∆V
OUT
Output Voltage Line Regulation V
IN
= 2.5V to 5.5V ● 0.04 0.4 %/V
V
LOADREG
Output Voltage Load Regulation I
LOAD
= 50mA to 250mA 0.5 %
V
IN
Input Voltage Range ● 2.5 5.5 V
V
UVLO
Undervoltage Lockout Threshold V
IN
Rising 2 2.3 V
V
IN
Falling 1.94 V
I
S
Input DC Bias Current (Note 4)
Burst Mode
®
Operation V
OUT
= 1.945V, I
LOAD
= 0A 26 35 µA
Shutdown V
RUN
= 0V 0.1 1 µA
f
OSC
Oscillator Frequency V
OUT
= 1.875V ● 1.8 2.25 2.7 MHz
V
OUT
= 0V 310 kHz
R
PFET
R
DS(ON)
of P-Channel FET I
SW
= 100mA 0.75 0.9 Ω
R
NFET
R
DS(ON)
of N-Channel FET I
SW
= –100mA 0.55 0.7 Ω
I
LSW
SW Leakage V
RUN
= 0V, V
SW
= 0V or 5V, V
IN
= 5V ±0.01 ±1 µA
V
RUN
RUN Threshold ● 0.3 1 1.5 V
I
RUN
RUN Leakage Current ● ±0.01 ±1 µA
Burst Mode is a registered trademark of Linear Technology Corporation.
LTC3410ESC6-1.875
ORDER PART
NUMBER
(Note 1)
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V
OUT
Voltages................................... –0.3V to V
IN
SW Voltage (DC) ......................... – 0.3V to (V
IN
+ 0.3V)
P-Channel Switch Source Current (DC) ............. 500mA
N-Channel Switch Sink Current (DC) ................. 500mA
Peak SW Sink and Source Current .................... 630mA
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Notes 3, 5) ...................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
SC6 PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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.
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to any Absolute Maximum
Rating condition for extended periods may affect device reliability and
lifetime.
Note 2: The LTC3410E-1.875 is guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC3410-1.875: T
J
= T
A
+ (P
D
)(250°C/W)
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
T
JMAX
= 125°C, θ
JA
= 250°C/ W
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/
LCFQ
RUN 1
GND 2
SW 3
6 V
OUT
5 GND
4 V
IN
TOP VIEW
SC6 PACKAGE
6-LEAD PLASTIC SC70
