PRODUCT DATASHEET
AAT1276
SwitchRegTM
Boost Converter with USB Power Switch
Typical Characteristics
P-Channel RDS(ON) vs. Supply Voltage
N-Channel RDS(ON) vs. Supply Voltage
320
350
300
100°C
300
100°C
125°C
280
125°C
260
250
85°C
240
85°C
200
220
200
25°C
25°C
150
180
160
100
2.5
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
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)
Supply Voltage (V)
Enable Soft Start
(VIN = 3.6V; 500mA Load)
Enable Soft Start
(VIN = 4.2V; 500mA Load)
EN
(2V/div)
EN
(2V/div)
VOUT2
(2V/div)
VOUT2
(2V/div)
VOUT1
(2V/div)
VOUT1
(2V/div)
IIN
(500mA/div)
IIN
(500mA/div)
Time (1ms/div)
Time (1ms/div)
Enable Soft Start
(VIN = 3.6V; CVOUT2 = 120µF; 16Ω Load)
Shutdown
(VIN = 3.6V; CVOUT2 = 120µF; 16Ω Load)
EN
(2V/div)
EN
(2V/div)
VOUT1
(1V/div)
VOUT1
(2V/div)
VOUT2
(2V/div)
VOUT2
(2V/div)
Time (100µs/div)
Time (50ms/div)
w w w . a n a l o g i c t e c h . c o m
1276.2007.11.1.1
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
