AAT1149 Просмотр технического описания (PDF) - Advanced Analogic Technologies
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AAT1149 Datasheet PDF : 21 Pages
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SwitchRegTM
PRODUCT DATASHEET
AAT1149
3MHz Fast Transient 400mA Step-Down Converter
Electrical Characteristics1
VIN = 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.
Symbol Description
Step-Down Converter
VIN
Input Voltage
VUVLO
VOUT
VOUT
IQ
ISHDN
ILIM
RDS(ON)H
UVLO Threshold
Output Voltage Tolerance
Adjustable Output Voltage Range
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
RDS(ON)L
ILXLEAK
ΔVLinereg
VOUT
IOUT
TS
FOSC
TSD
THYS
EN
VEN(L)
VEN(H)
IEN
Low Side Switch On Resistance
LX Leakage Current
Line Regulation
Out Threshold Voltage Accuracy
Out Leakage Current
Start-Up Time
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
VIN Rising
Hysteresis
VIN Falling
IOUT = 0 to 400mA, VIN = 2.7V to 5.5V
No Load
VEN = GND
SC70JW-8
WLCSP-5
SC70JW-8
WLCSP-5
VIN = 5.5V, VLX = 0 to VIN, VEN = GND
VIN = 2.7V to 5.5V
0.6V Output, No Load, TA = 25°C
0.6V Output
From Enable to Output Regulation
TA = 25°C
VIN = VOUT = 5.5V
Min Typ Max Units
2.7
5.5
2.7
100
1.8
-3.0
3.0
1.0
VIN
45
70
1.0
600
0.45
0.40
0.40
0.35
1
0.1
591 600 609
0.2
70
3.0
140
15
0.6
1.4
-1.0
1.0
V
V
mV
V
%
V
μA
μA
mA
Ω
Ω
μA
%/V
mV
μA
μs
MHz
°C
°C
V
V
μA
1. The AAT1149 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
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1149.2008.08.1.3
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