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LTC3406AES5#TRMPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC3406A
4
3406afa
TEMPERATURE (°C)
–50
OSCILLATOR FREQUENCY (MHz)
1.50
1.55
1.60
25 75
3406A G07
1.45
1.40
–25 0
50 100 125
1.35
1.30
V
IN
= 3.6V
INPUT VOLTAGE (V)
2.0
OSCILLATOR FREQUENCY (MHz)
1.40
1.50
6.0
3406A G08
1.30
1.20
3.0
4.0
5.0
2.5
3.5
4.5
5.5
1.60
1.35
1.45
1.25
1.55
INPUT VOLTAGE (V)
0
R
DS(0N)
(Ω)
0.30
0.35
0.40
35
3406A G10
0.25
0.20
12
467
0.15
0.10
MAIN SWITCH
SYNCHRONOUS
SWITCH
TEMPERATURE (°C)
–50
R
DS(ON)
(Ω)
0.35
25
3406A G11
0.20
0.10
–25 0 50
0.05
0
0.40
0.30
0.25
0.15
75 100 125
SYNCHRONOUS SWITCH
MAIN SWITCH
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
INPUT VOLTAGE (V)
2.0
0
DYNAMIC SUPPLY CURRENT (μA)
1
3
4
5
10
7
3.0
4.0
4.5
3406A G12
2
8
9
6
2.5 3.5
5.0
5.5
6.0
V
OUT
= 1.2V
I
LOAD
= 0A
Oscillator Frequency vs
Temperature
Oscillator Frequency vs
Input Voltage Burst Mode
R
DS(ON)
vs Input Voltage R
DS(ON)
vs Temperature Dynamic Supply Current
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
SW
2V/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 10mA
Burst Mode OPERATION
4μs/DIV
3406A G09
V
OUT
20mV/DIV
AC COUPLED
I
L
200mA/DIV
OUTPUT CURRENT (mA)
0
1.780
OUTPUT VOLTAGE (V)
1.788
1.792
1.796
1.800
1.804
1.808
200
400
3406A G04
1.812
1.816
1.820
1.784
600
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
OUT
= 1.8V
INPUT VOLTAGE (V)
2345
3406A G05
6
0
EFFICIENCY (%)
20
10
30
50
70
40
60
80
90
100
I
L
= 10mA
I
L
= 100mA
I
L
= 600mA
V
OUT
= 2.5V
TEMPERATURE (°C)
–50
REFERENCE VOLTAGE (V)
0.605
0.610
0.615
25 75
3406A G06
0.600
0.595
–25 0
50 100 125
0.590
0.585
V
IN
= 3.6V
Output vs Load Current
Effi ciency vs Input Voltage
Reference Voltage vs
Temperature
LTC3406A
5
3406afa
TEMPERATURE (°C)
–50
DYNAMIC SUPPLY CURRENT (μA)
200
250
300
25 75
3406A G13
150
100
–25 0
50 100 125
50
0
V
IN
= 3.6V
V
OUT
= 1.2V
I
LOAD
= 0A
TEMPERATURE (°C)
–50
80
100
140
25 75
3406A G14
60
40
–25 0
50 100 125
20
0
120
SWITCH LEAKAGE (nA)
SYNCHRONOUS
SWITCH
MAIN SWITCH
INPUT VOLTAGE (V)
0
0
SWITCH LEAKAGE (pA)
200
400
600
1
2
34
3406A G15
5
800
1000
100
300
500
700
900
6
SYNCHRONOUS
SWITCH
MAIN SWITCH
RUN = 0V
Dynamic Supply Current vs
Temperature Switch Leakage vs Temperature Switch Leakage vs Input Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
Start-Up from Shutdown Load Step Load Step
Load Step Load Step Discontinuous Operation
RUN
2V/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 600mA (3Ω RES)
500μs/DIV
3406A G16
I
LOAD
500mA/DIV
V
OUT
1V/DIV
V
OUT
200mV/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 0mA TO 600mA
20μs/DIV
3406A G17
I
LOAD
500mA/DIV
I
L
500mA/DIV
V
OUT
200mV/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 50mA TO 600mA
20μs/DIV
3406A G18
I
LOAD
500mA/DIV
I
L
500mA/DIV
V
OUT
200mV/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 100mA TO 600mA
20μs/DIV
3406A G19
I
LOAD
500mA/DIV
I
L
500mA/DIV
V
OUT
200mV/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 200mA TO 600mA
20μs/DIV
3406A G20
I
LOAD
500mA/DIV
I
L
500mA/DIV
SW
2V/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 50mA
500ns/DIV
3406A G21
I
L
200mA/DIV
V
OUT
20mV/DIV
AC COUPLED
LTC3406A
6
3406afa
FUNCTIONAL DIAGRAM
+
–
+
–
+
–
EA
+
–
I
RCMP
+
–
I
COMP
5
1
RUN
OSC
SLOPE
COMP
OSC
FREQ
SHIFT
0.6V
0.6V REF
SHUTDOWN
0.4V
0.65V
SLEEP
V
IN
V
FB
BURST
V
IN
S
R
RS LATCH
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
ANTI-
SHOOT-
THRU
Q
Q
5Ω
4
SW
3
GND
3406A BD
2
PIN FUNCTIONS
RUN (Pin 1): Run Control Input. Forcing this pin above 1.5V
enables the part. Forcing this pin below 0.3V shuts down
the device. In shutdown, all functions are disabled drawing
<1μA supply current. Do not leave RUN fl oating.
GND (Pin 2): Ground Pin.
SW (Pin 3): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchronous
power MOSFET switches.
V
IN
(Pin 4): Main Supply Pin. Must be closely decoupled to
GND, Pin 2, with a 2.2μF or greater ceramic capacitor.
V
FB
(Pin 5): Feedback Pin. Receives the feedback voltage
from an external resistive divider across the output.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC3406AES5#TRMPBF

Mfr. #:
Buy LTC3406AES5#TRMPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 1.5MHz, 600mA Sync Buck Reg in SOT
Lifecycle:
New from this manufacturer.
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