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| AAT1276 Datasheet, PDF (4/18 Pages) Advanced Analogic Technologies – Boost Converter with USB Power Switch | |||
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SwitchRegTM
PRODUCT DATASHEET
AAT1276
Boost Converter with USB Power Switch
Electrical Characteristics1
VCC = VIN = 3.6V, VOUT1 = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol
VIN, VCC
VOUTx
VUVLO
Description
Operating Input Voltage Range
Maximum Output Voltage Range
Under-Voltage Lockout
IQ
Quiescent Supply Current
ISHDN
Shutdown Current
Boost Converter
IO
Continuous Output Current
ILIMIT
Input Switch Current Limit
VFB
FB Pin Regulation
VOUT
Output Voltage Tolerance
ÎVOUT
(VOUT*ÎVIN)
ÎVOUT/VOUT
RDS(ON)H
RDS(ON)L
RDS(ON)_IN
Load Regulation
Line Regulation
High Side Switch On Resistance
Low Side Switch On Resistance
Input Disconnect Switch
TSS
Soft-Start Time
η
Efï¬ciency
FOSC
Switching Frequency
Load Switch
RDS(ON)
ILIM
ILIM(MIN)
TRESP
TON
TOFF
VFLT_LOW
IFLT
TBLANK
Control
Current Limit Switch On Resistance
Current Limit
Minimum Current Limit
Current Limit Response Time
Turn-On Delay Time
Turn-Off Delay Time
FLT Logic Output Low
FLT Logic Output High Leakage Current
Fault Blanking Time
VTH-L
VTH-H
IEN
TJ-TH
TJ-HYS
EN Threshold Low
EN Threshold High
EN Input Leakage
TJ Thermal Shutdown Threshold
TJ Thermal Shutdown Hysteresis
Conditions
No Load, Switching
No Load, Not Switching, VFB = 1.5V
EN = GND
Min
2.7
Typ
100
45
Max
5.0
5.5
2.7
90
1.0
3V < VIN < 5V, VO = 5V
No Load, TA = 25°C
500
2.5
0.591 0.6 0.609
ILOAD = 0 to 500mA, VIN = 2.7V to 5V
-3
3
ILOAD = 0 to 500mA
VIN = 2.7V to 5V
VOUT1 = 5V, IOUT1 = 500mA
VOUT1 = 5V, IOUT1 = 500mA
VOUT1 = 5V, IOUT1 = 500mA
From Enable to Output Regulation
IOUT1 = 250mA, L = 2.2μH, VIN = 3.6V,
VOUT1 = 5V
TA = 25°C, IOUT1 = 500mA, VIN = 3.6V,
VOUT1 = 5V
0.005
0.2
200
170
170
300
90
2.0
VOUT1 = 5V, TA = 25°C
RSET = 16.9kΩ
RSET = 40kΩ
VOUT1 = 5V
VOUT1 = 5V, RL = 10Ω
VOUT1 = 5V, RL = 10Ω
ISINK = 1mA
VFAULT = 5V
Rising and Falling Edge
0.2
500
625
100
0.4
4
10
0.4
0.5
1
4
VEN = 5V, VIN = 5V
0.4
1.4
-1
1
140
15
Units
V
V
V
μA
μA
mA
A
V
%
%/mA
%/V
mΩ
mΩ
mΩ
μs
%
MHz
Ω
mA
mA
μs
ms
μs
V
μA
ms
V
V
μA
°C
°C
1. The AAT1276 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
4
www.analogictech.com
1276.2007.11.1.1
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