Datasheet

LTC3536
5
3536fa
Typical perForMance characTerisTics
Maximum Load Current in PWM Mode
vs Input Voltage 1MHz Switching
Frequency, 4.7µH Inductor Value
Maximum Load Current in Burst
Mode Operation vs Input Voltage
Negative Inductor Current
vs Oscillator Frequency
Change in Output Voltage vs Load
Current for 3.3V Output and 3.3V
Input Load Step 0A to 1A Load Step 0mA to 300mA
R
DS(ON)
for P-Channel Switch D Feedback Voltage Oscillator Frequency vs R
T
T
A
= 25°C, V
IN
= V
OUT
= 3.3 V unless otherwise noted.
INPUT VOLTAGE (V)
1.5
R
DS(ON)
(mΩ)
120
240
260
280
2.5
3.5
4
3536 G10
80
200
160
100
220
60
180
140
2
3
4.5
65 5.5
–45°C
0°C
25°C
85°C
125°C
R
T
(kΩ)
40
0
OSCILLATOR FREQUENCY (MHz)
0.4
0.8
1.2
90
140
190 240
3536 G12
290
1.6
2.0
0.2
0.6
1.0
1.4
1.8
340
INPUT VOLTAGE (V)
1.5
0
MAXIMUM LOAD CURRENT (mA)
500
1500
2000
2500
2.5
3.5
4 6
3536 G13
1000
2 3
4.5
5
5.5
V
OUT
= 1.8V
V
OUT
= 3.3V
V
OUT
= 5.5V
INPUT VOLTAGE (V)
1.5
0
MAXIMUM LOAD CURRENT (mA)
50
150
200
250
2.5
3.5
4 6
3536 G14
100
2 3
4.5
5
5.5
300
V
OUT
= 1.8V
V
OUT
= 3.3V
V
OUT
= 5.5V
OSCILLATOR FREQUENCY (MHz)
0.2 0.60.4 0.8 1.21 1.4 1.6 1.8 2.2
2.4
2
REVERSE CURRENT LIMIT (A)
–1.0
–0.5
3536 G15
–1.5
–2.0
0
V
OUT
PULLED UP TO 3.6V
V
IN
= 1.8V
L = 4.7µH
LOAD CURRENT (mA)
0.001
OUTPUT VOLTAGE REGULATION (%)
0
1
0.01 0.1 101
3536 G16
–1
–2
–3
PWM
BURST
V
OUT
200mV/DIV
I
LOAD
500mA/DIV
100µs/DIV
3536 G17
V
IN
= 3.2V
V
OUT
= 3.3V
V
OUT
200mV/DIV
I
LOAD
100mA/DIV
100µs/DIV
3536 G18
V
IN
= 1.8V
V
OUT
= 3.3V
TEMPERATURE (°C)
–50
CHANGE IN VOLTAGE FROM 25°C (%)
0.2
0.6
1.0
110
3536 G11
–0.2
–0.6
0
0.4
0.8
–0.4
–0.8
–1.0
–10–30
3010
70 90 130
50
150