GSCLM2931 Datasheet, PDF (2/4 Pages) GTM CORPORATION – 100mA Low Dropout Adjustable Voltage Regulator

ISSUED DATE :2006/03/24
REVISED DATE :
Absolute Maximum Ratings
Parameter
Input Voltage
Input Voltage t 100ms
Output Current
Storage Temperature
Junction Temperature
Resistance Junction-Ambient
Symbol
Vi
Vi(t)
IO
TSTG
TJ
R JA
Ratings
-15 ~ 40
-50 ~ 60
100
-60 ~ +150
-40 ~ +125
160
Electrical Characteristics
VIN=14V, VOUT=3V, IO=10mA, TJ=25к, Ci=0.1uF, Co=100uF, R1=27k (unless otherwise specified)
Parameter
Symbol
Conditions
Min
Reference voltage
IO=10mA
VREF _{IO 100mA, -40к TJ 125к}
Measure from VOUT to Adj Pin
1.14
1.08
Output voltage
VOUT
3
Line regulation
RegLine VOUT+0.6V VIN 26V
-
Load regulation
RegLoad 5mA IO 100mA
-
IO=10mA
-
Consumption current
IB IO=100mA
-
Output is “off” (Vth(OI)=2.5V)
-
Adjustment current
IAdj
-
Dropout voltage
Vds
IO=10mA
IO=100mA
-
Output Impedance
ZO IO=1mA, f=10Hz~100kHz
-
Noise voltage on output Vn f=10Hz~100kHz
-
Pulse-smoothing ratio RR f=120Hz
0.1
Temporary unstability of
output voltage
S
-
Maximum input voltage
threshold
Vth(OV)
26
Output voltage at
negative input voltage
-VO VIN=-15V
-0.3
Voltage threshold of
disconnection output
Vth(OI) ^{Output is “ON”}
Output is “OFF”
-
2.5
Disconnection output
current
Ith(OI) Vth(OI)=2.5V
-
Typ
1.20
-
-
-
6
-
0.2
-
40
140
-
0.4
-
-
-
-
-
Max
12.6
1.32
24
1.5
1.0
1.0
-
1.0
-
0.2
0.6
-
-
-
-
40
-
1.9
-
50
Unit
V
V
mA
к
к
к/W
Unit
V
V
V
mV/V
%
mA
uA
V
m /V
mV/V
%/V
%/1000hr
V
V
V
uA
Definition of Terms
Dropout Voltage: The input-output voltage differential at which the circuit ceases to regulate against further reduction in input voltage.
Measured when the output voltage has dropped 100mV from the nominal value obtained at 14V input, dropout voltage is dependent upon
load current and junction temperature.
Input Voltage: The DC voltage applied to the input terminals with respect to ground.
Input-Output Differential: The voltage difference between the unregulated input voltage and the regulated output voltage for which the
regulator will operate.
Line Regulation: The change in output voltage for a change in the input voltage. The measurement is made under conditions of low
dissipation or by using pulse techniques such that the average chip temperature is not significantly affected.
Load Regulation: The change in output voltage for a change in load current at constant chip temperature.
Long Term Stability: Output voltage stability under accelerated life-test conditions after 1000 hours with maximum rate voltage and
junction temperature.
Output Noise Voltage: The rms AC voltage at the output, with constant load and no input ripple, measured over a specified frequency
range.
Quiescent Current: That part of the positive input current that does not contribute to the positive load current. The regulator ground lead
current.
Ripple Rejection: The ratio of the peak-to-peak input ripple voltage to the peak-to-peak output ripple voltage at a specified frequency.
GSCLM2931
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