600mA CMOS L.D.O. Regulator
LM8805
ELECTRICAL CHARACTERISTICS
(At TA =25℃, VIN = VOUT(nominal) + 1V, unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
1.27
MAX.
UNIT
%
IO = 1mA
-1.5
-3
+1.5
+2
Output Voltage Accuracy
VO
IO = 1 to 600mA
IO = 1mA
1.251
1.232
1.289
1.295
Adjustable Voltage
VADJ
V
IO = 1 to 600mA
line Regulation
ΔVLINE
IO = 1mA, (VOUT+1V)<VIN<6.5V
1mA ≤ IO ≤ 600mA, COUT = 1uF
VOUT > 2.8V, IO=600mA
-0.3
0.05
0.5
0.3
1.5
%/V
%
Load Regulation(Note 1)
ΔVLOAD
600
900
1300
1000
1400
1900
Dropout Voltage
VDROP
mV
2.0V < VOUT ≤ 2.8V, IO=600mA
VOUT ≤ 2.0V, IO=600mA
VOUT > 0.96*VRating
Maximum Output Current
Current Limit
IO(MAX)
ICL
600
mA
mA
1300
600
CBP = 0uF, COUT = 1uF
EN Exit Delay
usec
IO = 100mA
EN Input Bias Current
VEN = GND
100
nA
uA
uA
V
EN Input Low Current
VEN = VIN
-1
2
-0.3
EN Supply Current
VEN = VIN
0.01
1
EN Input Threshold Low
EN Input Threshold High
Ground Pin Current
VIL
VIH
VIN = 2.5 to 5.5V
VIN = 2.5 to 5.5V
IOUT = 0mA to 600mA
IOUT = 10mA
IOUT = 10mA
IOUT = 10mA
0.4
V
IGND
TSD
50
155
10
85
uA
℃
Thermal Shutdown Temperature
Thermal Shutdown Hysterisis
VO Temperature Coefficient
ΔTSD
℃
30
ppm
I
OUT = 100mA, COUT = 2.2uF,
Power Supply Ripple Rejection
PSRR
55
dB
f = 100Hz
Note 1. Load Regulation is measured using pulse techniques with duty cycle < 5%
OPERATING CHARACTERISTICS
T.B.D
APPLICATION INFORMATION
Detailed Description
The LM8805 consists of a high-precision voltage reference, an error correction circuit, and a current limited
output driver. With good transient responses, output remains stable even during load changes. The SHDN
input enables the output to be turned off, resulting in reduced power consumption.
The LM8805 incorporates both over-temperature and over-current protection.
Aug. 2010 - Rev. 1.5.1
- 4 -
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
