AAT1217
600mA, 1.2MHz, Micropower
Synchronous Step-Up Converter
Typical Characteristics
No Load Input Current vs. Input Voltage
Output Voltage vs. Temperature
(VOUT = 3.3V; TA = 25°C; No Load)
150
140
130
120
110
100
90
3.35
3.34
3.33
3.32
3.31
3.3
3.29
3.28
3.27
3.26
3.25
80
70
60
50
1.5
1.8
2.1
2.4
2.7
3
-50
-25
0
25
50
75
100
Input Voltage (V)
Temperature (°C)
Pulse Skipping Mode Operation
Anti-Ringing Operation at SW
(VIN = 1.8V; VOUT = 3.3V; IOUT = 5mA)
(VIN = 2.4V; VOUT = 5V; IOUT = 20mA)
VSW
2V/div
VSW
2V/div
0V
0V
VOUT
50mV/div
(AC)
Time (1ms/div)
Time (400ns/div)
Load Transient Response
(VIN = 1.5V; VOUT = 3.3V; CFF = 100pF)
100mA
IOUT
50mA/div
40mA
0A
VOUT
100mV/div
(AC)
Time (100µs/div)
6
1217.2007.07.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
