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LT3667HMSE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34
LT3667
7
3667fb
For more information www.linear.com/LT3667
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Switch On-Time/
Switch-Off Time
Switch V
CESAT
BOOST Pin Current
Minimum Input Voltage,
V
OUT
= 3.3V
Minimum Input Voltage,
V
OUT
= 5V
Switch Current Limit Switching Frequency
T
A
= 25°C, unless otherwise noted.
Transient Load Response,
Load Step 10mA to 140mA
Transient Load Response
Load Step 150mA to 300mA
TEMPERATURE (°C)
–50
SWITCH CURRENT LIMIT (mA)
700
800
900
25 75 150
3667 G10
600
500
400
–25 0
50
100 125
0% DUTY CYCLE
100% DUTY CYCLE
CATCH DIODE VALLEY CURRENT LIMIT
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
1.2
1.8
2.0
150
3667 G11
1.0
0.8
0
0
50
100
–25
25
75
125
0.4
2.4
2.2
1.6
1.4
0.6
0.2
R
T
= 37.4k
R
T
= 95.3k
R
T
= 487k
TEMPERATURE (°C)
–50
0
SWITCH ON-TIME/SWITCH OFF-TIME (ns)
20
60
80
100
200
140
0
50
75
3667 G12
40
160
180
120
–25 25
100
125
150
MINIMUM OFF-TIME
MINIMUM ON-TIME
LOAD CURRENT = 200mA
SWITCH CURRENT (mA)
0
SWITCH V
CESAT
(mV)
400
500
600
300 500
3667 G13
300
200
100 200
400 600 700
100
0
T
J
= –50°C
T
J
= 25°C
T
J
= 125°C
T
J
= 150°C
SWITCH CURRENT (mA)
0
2
BOOST PIN CURRENT (mA)
4
8
10
12
400
20
3667 G14
6
200
100
500
300 600
14
16
18
T
A
= 150°C
T
A
= 25°C
T
A
= –50°C
LOAD CURRENT I
OUT1
(mA)
0
INPUT VOLTAGE V
IN1
(V)
4.0
4.5
5.0
150 250 400
3667 G15
3.5
3.0
3.5
50 100
200
300 350
TO START
TO RUN
FRONT PAGE APPLICATION
V
EN
= V
IN1
, V
OUT1
= 3.3V
LOAD CURRENT I
OUT1
(mA)
0
INPUT VOLTAGE V
IN1
(V)
5.5
6.0
6.5
150 250 400
3667 G16
5.0
4.5
4.0
50 100
200
300 350
TO START
TO RUN
FRONT PAGE APPLICATION
V
EN
= V
IN1
, V
OUT1
= 5V
3667 G17
100µs/DIV
V
OUT1
100mV/DIV
I
L
100mA/DIV
FRONT PAGE APPLICATION
3667 G18
100µs/DIV
V
OUT1
100mV/DIV
I
L
150mA/DIV
FRONT PAGE APPLICATION
LT3667
8
3667fb
For more information www.linear.com/LT3667
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Waveforms,
Burst Mode Operation
Switching Waveforms, Full
Frequency Continuous Operation EN Threshold
EN Pin Current
LDOs:
Typical Dropout Voltage
LDOs:
Guaranteed Dropout Voltage
LDOs:
IN2, IN3 Quiescent Current
LDOs:
5V Quiescent Current IN2
LDOs:
5V Quiescent Current IN3
T
A
= 25°C, unless otherwise noted.
EN PIN VOLTAGE (V)
0
EN PIN CURRENT (µA)
0.6
0.8
1.0
15 25 40
3667 G22
0.4
0.2
0
5 10
20
30 35
3667 G19
1µs/DIV
V
SW
5V/DIV
V
OUT1
5mV/DIV
I
L
100mA/DIV
I
LOAD
= 10mA
FRONT PAGE APPLICATION
3667 G20
1µs/DIV
V
SW
5V/DIV
V
OUT1
5mV/DIV
I
L
200mA/DIV
I
LOAD
= 400mA, FRONT PAGE APPLICATION
TEMPERATURE (°C)
–50
0
THRESHOLD VOLTAGE (V)
0.1
0.3
0.4
0.5
1.0
0.7
0
50
75
3667 G21
0.2
0.8
0.9
0.6
–25 25
100
125
150
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
300
400
500
600
160
3667 G23
200
100
250
350
450
550
150
50
0
40
80
120
20 180
60
100
140
200
T
A
= –50°C
T
A
= 25°C
T
A
= 125°C
T
A
= 150°C
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
400
500
600
180160
3667 G24
300
200
0
40
80
120
20 200
60
100
140
100
800
T
J
= 150°C
T
J
= 25°C
700
= TEST POINTS
TEMPERATURE (°C)
–50
0
QUIESCENT CURRENT (µA)
10
20
30
40
0 50
100
150
3667 G25
50
60
IN2
IN3
–25 25
75
125
V
IN2/3
= 5V
V
EN
= 0.3V
V
IN2/3
= 5V
V
EN
= 2V, V
IN1
= 0
V
OUT2/3
= 0.8V
I
LOAD
= 5µA
V
IN2
(V)
0
0
QUIESCENT CURRENT I
IN2
(µA)
20
60
80
100
30 35 40
180
3667 G26
40
15
5
20
10
25 45
120
140
160
V
IN1
= V
EN
= 12V
V
EN2/ILIM2
= 0V
V
EN2/ILIM2
= 2V
V
IN3
(V)
0
0
QUIESCENT CURRENT I
IN3
(µA)
20
60
80
100
30 35 40
180
3667 G27
40
15
5
20
10
25 45
120
140
160
V
IN1
= V
EN
= 12V
V
EN3/ILIM3
= 0V
V
EN3/ILIM3
= 2V
LT3667
9
3667fb
For more information www.linear.com/LT3667
TYPICAL PERFORMANCE CHARACTERISTICS
FB2, FB3 Pin Bias Current
LDOs:
Internal Current Limit
LDOs:
Internal Current Limit
LDOs:
Reverse Output Current
LDOs:
Reverse Output Current
LDOs:
Input Ripple Rejection
T
A
= 25°C, unless otherwise noted.
LDOs:
Minimum Input Voltage
LDOs:
Load Regulation
LDOs:
Output Noise Spectral Density
TEMPERATURE (°C)
–50
FB2/3 PIN BIAS CURRENT (nA)
3
4
5
25 75 150
3667 G28
2
1
0
–25 0
50
100
FB3
FB2
125
TEMPERATURE (°C)
–50
MINIMUM INPUT VOLTAGE (V)
0.6
1.8
2.0
2.2
0
50
75 100
3667 G34
0.2
1.4
1.0
0.4
1.6
0
1.2
0.8
–25
25
125
150
I
L
= 200mA
V
OUT2/3
= 0.8V
V
IN1
= 5V
INPUT/OUTPUT DIFFERENTIAL (V)
0
0
CURRENT LIMIT (mA)
50
150
200
250
350
5
25
35
3667 G29
100
300
20
45
10
15
30 40
T
A
= 140°C
T
A
= 125°C
T
A
= 25°C
T
A
= –50°C
OUTPUT VOLTAGE (V)
0
200
CURRENT LIMIT (mA)
225
250
275
325
5
25
35
3667 G30
300
20
45
10
15
30 40
T
A
= 140°C
T
A
= 125°C
T
A
= 25°C
T
A
= –50°C
V
IN2/3
-V
OUT2/3(NOMINAL)
= 1V
V
OUT2/3
(V)
0
0
I
OUT2/3
(nA)
0.1
0.3
0.4
0.5
1.0
0.7
10
20
25 45
3667 G31
0.2
0.8
0.9
0.6
5 15
30
35
40
ALL PINS GROUNDED
EXCEPT FOR OUT2/3
TEMPERATURE (°C)
–50
0
CURRENT (µA)
5
15
20
25
50
35
0
50
75 150
3667 G32
10
40
45
30
–25 25
100
125
V
OUT2/3
= V
FB2/3
= 2V
V
IN2/3
= 0V
I
FB2/3
I
OUT2/3
FREQUENCY (Hz)
10 100
30
INPUT RIPPLE REJECTION (dB)
40
50
60
70
1k 10k 100k 1M 10M
3667 G33
20
10
0
80
90
I
OUT2/3
= 200mA
V
OUT2/3
= 5V
V
IN2/3
= 5.8V + 50mV
RMS
RIPPLE
OUT3 (V
IN1
= 12V)
OUT2
(V
IN1
= 12V)
TEMPERATURE (°C)
–50
–5
LOAD REGULATION (mV)
–4
–3
–2
–1
0 50
100
150
3667 G35
0
1
–25 25
75
125
∆I
OUT2/3
= 1mA TO 200mA
V
OUT2/3
= 0.8V
V
IN2/3
= 2.2V
V
IN1
= 5V
FREQUENCY (Hz)
0.1
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
1
10 1k 10k 100k
3667 G36
0.01
100
10
V
OUT2/3
= 5V
V
OUT2/3
= 3.3V
V
OUT2/3
= 2.5V
V
OUT2/3
= 1.8V
V
OUT2/3
= 1.5V
V
OUT2/3
= 1.2V
V
OUT2/3
= 0.8V
C
OUT
= 10µF
I
L
= 200mA
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LT3667HMSE#PBF

Mfr. #:
Buy LT3667HMSE#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 40V 400mA Step-Down Switching Regulator with Dual Fault Protected LDOs
Lifecycle:
New from this manufacturer.
Delivery:
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