EUP8084
Absolute Maximum Ratings
Input Voltage to GND (VINA, VINB
)
--------------------------------------------------------------------------- 6V
Adapter Voltage to GND (VADP
)
-------------------------------------------------------------------- -0.3V to 6V
LX to GND (VLX) ----------------------------------------------------------------------- -0.3V to VIN +0.3V
FB to GND (VFB) ---------------------------------------------------------------------------- -0.3V to VIN +0.3V
ENA, ENB, EN_BAT to GND (VEN) -------------------------------------------------------------- -0.3V to 6V
BAT, ISET, STAT (VX) --------------------------------------------------------------------- -0.3V to VADP+0.3V
Operating Junction Temperature Range (TJ) ------------------------------------------------- -40℃ to 150℃
Maximum Soldering Temperature (at leads, 10sec) ---------------------------------------------------- 260℃
Thermal Information
Maximum Power Dissipation (PD) --------------------------------------------------------------------------- 2W
Thermal Resistance (θJA) --------------------------------------------------------------------------------- 50℃/W
Electrical Characteristics (VINB=3.6V; TA = -40℃ to 85℃, unless otherwise noted. Typical values are TA=25℃)
EUP8084
Min. Typ. Max.
Symbol
Parameter
Conditions
Unit
Step-Down Converter
VIN
Input Voltage
2.6
5.5
2.6
V
V
VINB Rising
Hysteresis
200
36
mV
V
VUVLO
UVLO Threshold
VINB Falling
2.4
-3
IOUTB = 0 to 250mA,
VOUT
Output Voltage Tolerance
3
%
VINB = 2.6V to 5.5V
VOUT
IQ
Output Voltage Range
Quiescent Current
0.6
VINB
V
µA
µA
A
No Load
ISHDN
Shutdown Current
ENB = GND
1
ILIM
P-Channel Current Limit
High-Side Switch On Resistance
Low-Side Switch On Resistance
LX Leakage Current
1
RDS(ON)H
RDS(ON)L
ILXLEAK
△VLinereg/△VIN
0.26
0.28
Ω
Ω
VINB = 5.5V, VLX = 0 to VINB
1
µA
%/V
Line Regulation
VINB = 2.8V to 5.5V
0.2
0.6
0.4
Feedback Threshold Voltage
VFB
VINB = 3.6V
0.588
1.2
0.612
V
Accuracy
IFB
FOSC
TS
FB Leakage Current
Oscillator Frequency
Startup Time
VOUTB = 1.0V
0.2
1.8
µA
MHz
µs
1.5
From Enable to Output Regulation
120
Over-Temperature Shutdown
℃
TSD
150
20
Threshold
Over-Temperature Shutdown
Hysteresis
℃
THYS
VEN(L)
Enable Threshold Low
0.4
V
DS8084 Ver1.0 Apr. 2008
5
EUTECH [ EUTECH MICROELECTRONICS INC ]
