Datasheet

Data Sheet ADP1607
Rev. C | Page 9 of 16
TIME (200µs/DIV)
V
IN
= 1.2V
V
OUT
= 3.3V
R
LOAD
= 33Ω
EN PIN VOLTAGE
(1V/DIV)
INDUCTOR CURRENT
(500mA/DIV)
SW PIN VOLTAGE
(2V/DIV)
OUTPUT VOLTAGE
(1V/DIV)
10276-021
1
4
3
2
Figure 21. Startup, R
LOAD
= 33 Ω
TIME (10µs/DIV)
V
IN
= 1.2V
V
OUT
= 3.3V
I
LOAD
= 10mA
INDUCTOR CURRENT
(200mA/DIV)
SW PIN VOLTAGE
(2V/DIV)
OUTPUT VOLTAGE (100mV/DIV)
AC COUPLED
10276-022
1
4
2
Figure 22. Typical PFM Mode Operation, I
LOAD
= 10 mA
TIME (400ns/DIV)
V
IN
= 1.2V
V
OUT
= 3.3V
I
LOAD
= 100mA
INDUCTOR CURRENT
(100mA/DIV)
SW PIN VOLTAGE
(2V/DIV)
OUTPUT VOLTAGE (20mV/DIV)
AC COUPLED
10276-023
1
4
2
Figure 23. Typical PWM Mode Operation, I
LOAD
= 100 mA