PRODUCT DATASHEET
AAT1276
SwitchRegTM
Boost Converter with USB Power Switch
Typical Characteristics
Light Load Switching Waveform
(VIN = 3.6V; VOUT = 5.0V; 10mA Load)
Heavy Load Switching Waveform
(VIN = 3.6V; VOUT = 5.0V; 500mA Load)
VLX
(2V/div)
VLX
(2V/div)
VOUT1
(25mV/div)
VOUT1
(100mV/div)
VOUT2
VOUT2
(25mV/div)
(100mV/div)
ILX
(500mA/div)
ILX
(500mA/div)
Time (5µs/div)
Time (500ns/div)
Load Transient Response
(VIN = 3.6V; VOUT = 5.0V)
Load Transient Response
(VIN = 3.6V; VOUT = 5.0V)
5.062V
5.0V
VOUT
(100mV/div)
VOUT
(50mV/div)
4.87V
4.92V
500mA
500mA
IOUT
(400mA/div)
IOUT
(200mA/div)
1mA
250mA
Time (100µs/div)
Time (100µs/div)
Line Transient Response
(16Ω Load)
Load Switch RDS(ON) vs. Input Voltage
250
4.2V
85°C
120°C
200
150
100
50
VIN
(500mV/div)
3.6V
5.064V
-40°C
25°C
VOUT
(200mV/div)
4.752V
0
2.5
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
Supply Voltage (V)
Time (100µs/div)
w w w . a n a l o g i c t e c h . c o m
6
1276.2007.11.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
