LTC3330_15 Datasheet, PDF (8/32 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender

LTC3330
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C, unless otherwise noted.
R_DS(ON) of Buck-Boost PMOS/NMOS
vs Temperature, 5mA I_PEAK Setting
55
50
PMOS, BAT = 1.8V
45
40
35
30
25
20
PMOS, BAT = 5V
15
10
NMOS, BAT = 1.8V
5
0
–50 –25
NMOS, BAT = 5V
0 25 50 75 100 125
TEMPERATURE (°C)
3330 G19
I_{PEAK_BB} vs Temperature, 250mA
I_PEAK Setting
300
BAT = 3.6V
290
280
270
260
250
240
230
220
210
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3330 G20
I_{PEAK_BB} vs Temperature, 5mA
I_PEAK Setting
6.0
BAT = 3.6V
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3330 G21
Buck-Boost Load Regulation, 3.3V
3.400
3.375
C_OUT = 100µF
L = 22µH
IPK[2:0] = 111
3.350
3.325
3.300
3.275
BAT = 5V
BAT = 1.8V
3.250
3.225
3.200
1µ
10µ 100µ 1m
I_LOAD (A)
10m 100m
3330 G22
Buck-Boost Line Regulation, 3.3V
3.400
3.375
C_OUT = 100µF
L = 22µH
IPK[2:0] = 111
3.350
3.325
LOAD = 1mA
Buck-Boost Switching Waveforms
OUTPUT
VOLTAGE
50mV/DIV
AC-COUPLED
SWA VOLTAGE
2V/DIV 0V
3.300
3.275
LOAD = 100mA
SWB VOLTAGE
2V/DIV 0V
3.250
3.225
INDUCTOR
CURRENT
200mA/DIV
0mA
3.200
1.8 2.2 2.6 3.0 3.4 3.8 4.2 4.6 5
BAT (V)
3330 G23
20µs/DIV
BAT = 1.8V, V_OUT = 3.3V
I_LOAD = 10mA
L = 22µH, C_OUT = 100µF
3330 G24
Buck Load Regulation, 3.3V
3.400
3.375
3.350
V_IN = 4V
C_OUT = 100µF
L = 22µH
3.325
3.300
3.275
3.250
3.225
3.200
1µ
10µ 100µ 1m
I_LOAD (A)
10m 100m
3330 G25
Buck Line Regulation, 3.3V
3.400
3.375
C_OUT = 100µF
L = 22µH
3.350
Buck Switching Waveforms
OUTPUT
VOLTAGE
50mV/DIV
AC-COUPLED
3.325
3.300
3.275
3.250
3.225
3.200
4
LOAD = 1mA
SW VOLTAGE
10V/DIV 0V
LOAD = 100mA
INDUCTOR
CURRENT
200mA/DIV
0mA
6 8 10 12 14 16 18
V_IN (V)
3330 G26
8µs/DIV
V_IN = 18V, V_OUT = 3.3V
I_LOAD = 10mA
L = 22µH, C_OUT = 100µF
3330 G27
3330fb
8
For more information www.linear.com/LTC3330