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LP78084 датащи(PDF) 5 Page - Lowpower Semiconductor inc

номер детали LP78084
подробное описание детали  Total Power solution of Portable Applications 800mA Charge 800mA Buck DC/DC300mA LDO
PDF  20 Pages
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производитель  POWER [Lowpower Semiconductor inc]
домашняя страница  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP78084 датащи(HTML) 5 Page - Lowpower Semiconductor inc

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Preliminary Datasheet
LP78084
LP78084 – 02 Ver. 1.1 Datasheet
Nov.-2007
Page 5 of 22
Electrical Characteristics (VINA
=VOUT(NOM) + 1V for VOUT options greater than 1 .5V. IOUT = 1mA, COUT = 2.2µF, CIN = 1µF,
TA = -40℃ to 85℃ , unless otherwise noted. Typical values are TA=25℃ )
LP78084
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Linear Regulator
VOUT
Output Voltage Tolerance
IOUTA = 100 µA to
300mA
TA = 25°C
-3
3
%
VIN
Input Voltage
V
OUT
+
VDO
5.5
V
VDO
Dropout Voltage
I
OUTA
= 300mA
150
200
mV
∆ VOUT/
V
OUT
*∆ VIN
Line Regulation
V
INA
=
V
OUTA
+ 0.5 to 5.5V,
I
OUTA
= 1mA
0.05
0.2
%/V
∆ VOUT(Load)
Dynamic Load Regulation
IOUTA = 1mA to 300mA
15
35
mV
I
OUT
Output Current
V
OUTA
> 1 .2V
300
mA
ISC
Short-Circuit Current
TA = -40к to 85к
720
mA
IQ
Quiescent Current
V
INA
= 5V; ENA = VIN
84
140
µA
ISHDN
Shutdown Current
VINA = 5V; ENA = 0V
1
µA
PSRR
Power Supply Rejection Ratio
VIN
=V
OUT
+1V
1kHz
65
dB
TSD
Over-Temperature Shutdown
Threshold
160
℃
THYS
Over-Temperature Shutdown
Hysteresis
25
℃
eN
Output Noise
IOUT
=10mA,10HzЉ fЉ 100kHz
125
µVRMS
VEN(L)
Enable Threshold Low
0.4
V
V
EN(H)
Enable Threshold High
1.6
V
IEN
Enable Input Current
VENA = 5.5V
100
nA
Battery Charger Operation
VADP
Adapter Voltage Range
3.75
5
5.5
V
VASD
Automatic Shutdown Threshold
Voltage
(
V
CC
-
V
BAT),
V
CC
Low to High
85
110
135
mV
(VCC-VBAT),VCC High to Low
15
45
70
T
SS_CHRG
Battery Charger Soft-Start Time
120
µS
V
Under-Voltage Lockout (UVLO)
ADP Rising Edge
3.4
3.6
3.8
V
ADP Falling Edge
2.8
3
3.2
V
IOP
Operating Current
VBAT
=4.5V(Forces
IBAT and IISET=0)
115
300
µA
I
SHUTDOWN
Shutdown Current
V
BAT
= 4V, EN_BAT = GND
0.2
5
µA
ILEAKAGE
Reverse Leakage Current from
BAT Pin
VBAT = 4V, VADP=3.5V
0.7
2
µA



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