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參數(shù)資料
| 型號： | ISL9003A |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Low Noise LDO with Low IQ, High PSRR |
| 中文描述： | 低噪音LDO低智商，高PSRR |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 210K |
| 代理商： | ISL9003A |
3
FN6299.1
December 21, 2006
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VIN+0.3V)
Recommended Operating Conditions
Ambient Temperature Range (T
A
) . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 to 6.5V
Thermal Resistance
5 Ld SC-70 Package (Note 3) . . . . . . . . . . . . . . . . .
6 Ld
μ
TDFN Package (Note 4) . . . . . . . . . . . . . . . .
Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
θ
JA
(°C/W)
231
125
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
4.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
Electrical Specifications
Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range
of the device as follows: T
A
= -40°C to +85°C; V
IN
= (V
O
+0.5V) to 6.5V with a minimum V
IN
of 2.3V; C
IN
= 1
μ
F;
C
O
= 1
μ
F; C
BYP
= 0.01
μ
F
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Supply Voltage
V
IN
2.3
6.5
V
Ground Current
I
DD
Output Enabled; I
O
= 0
μ
A; V
IN
< 4.2V
Output Enabled; I
O
= 0
μ
A; Full voltage range
31
40
μ
A
57
μ
A
Shutdown Current
I
DDS
0.5
1.2
μ
A
UVLO Threshold
V
UV+
1.9
2.1
2.3
V
V
UV-
1.6
1.8
2.0
V
Regulation Voltage Accuracy
Initial accuracy at V
IN
= V
O
+0.5V, I
O
= 10mA, T
J
= +25°C
V
IN
= V
O
+0.5V to 6.5V, I
O
= 10
μ
A to150mA, T
J
= +25°C
V
IN
= V
O
+0.5V to 6.5V, I
O
= 10
μ
A to 150mA, T
J
= -40°C to +125°C
-0.7
+0.7
%
-0.8
+0.8
%
-1.8
+1.8
%
Maximum Output Current
I
MAX
Continuous
150
mA
Internal Current Limit
I
LIM
175
265
355
mA
Drop-out Voltage (Note 6)
V
DO1
I
O
= 150mA; V
O
<
2.5V
I
O
= 150mA; 2.5V
≤
V
O
≤
2.8V
I
O
= 150mA; 2.8V
<
V
O
300
500
mV
V
DO2
250
400
mV
V
DO3
200
325
mV
Thermal Shutdown Temperature
T
SD+
140
°C
T
SD-
110
°C
AC CHARACTERISTICS
Ripple Rejection (Note 5)
I
O
= 10mA, V
IN
= 2.8V(min), V
O
= 1.8V, C
BYP
= 0.1μF
@ 1kHz
90
dB
@ 10kHz
70
dB
@ 100kHz
50
dB
Output Noise Voltage (Note 5)
V
O
= 1.5V, T
A
= +25°C, C
BYP
= 0.1μF
BW = 10Hz to 100kHz, I
O
= 100
μ
A
20
μ
V
RMS
μ
V
RMS
BW = 10Hz to 100kHz, I
O
= 10mA
30
DEVICE START-UP CHARACTERISTICS
Device Enable TIme
T
EN
Time from assertion of the EN pin to when the output voltage
reaches 95% of the VO(nom).
250
500
μ
s
LDO Soft-start Ramp Rate
T
SSR
Slope of linear portion of LDO output voltage ramp during start-up
30
60
μ
s/V
ISL9003A
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