LTC3536_15 Datasheet, PDF (4/28 Pages) Linear Technology – 1A Low Noise, Buck-Boost DC/DC Converter

LTC3536
Typical Performance Characteristics T_A = 25°C, V_IN = V_OUT = 3.3 V unless otherwise noted.
Efficiency 3.3V vs Load Current
100
90
80
70
60
50
40
30
20
10
0
0.001
V_IN = 1.8V
V_IN = 2.5V
V_IN = 5.5V
V_IN = 1.8V BURST
V_IN = 2.5V BURST
V_IN = 5.5V BURST
0.01
0.1
LOAD CURRENT (A)
1
3536 G01
No-Load Quiescent Current in
PWM Mode Operation
14
V_OUT = 3.3V
12
V_OUT = 1.8V
V_OUT = 5.5V
10
8
6
4
2
0
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G04
R_DS(ON) for P-Channel Switch A
280
–45°C
260
0°C
240
25°C
85°C
220
125°C
200
180
160
140
120
100
80
60
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G07
Efficiency Li-Ion (3V, 3.7V, 4.2V)
to 3.3V Output
100
90
80
70
60
50
40
30
20
10
0
0.001
V_IN = 3V
V_IN = 3.7V
V_IN = 4.2V
V_IN = 3V BURST
V_IN = 3.7V BURST
V_IN = 4.2V BURST
0.01
0.1
LOAD CURRENT (A)
1
3536 G02
Input Current Limit vs Supply
Voltage, V_OUT = GND
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
125°C
0.8
85°C
0.7
25°C
0.6
–40°C
0.5
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G05
R_DS(ON) for N-Channel Switch B
280
–45°C
260
0°C
240
25°C
220
85°C
125°C
200
180
160
140
120
100
80
60
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G08
No-Load Quiescent Current in Burst
Mode Operation (MODE = V_IN)
60
55
50
45
40
35
30
V_OUT = 1.8V
25
V_OUT = 3.3V
V_OUT = 5.5V
20
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G03
Input Current Limit vs Supply
Voltage, V_OUT = 3.3V
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
125°C
1.9
85°C
1.8
25°C
1.7
–40°C
1.6
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G06
R_DS(ON) for N-Channel Switch C
280
–45°C
260
0°C
240
25°C
220
85°C
125°C
200
180
160
140
120
100
80
60
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3536 G09
3536fa
4