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ISL9021IRUJZ-T

P1-P3P4-P6P7-P9P10-P10
4
FN6867.2
January 14, 2010
Typical Operating Performance
FIGURE 1. QUIESCENT CURRENT vs INPUT VOLTAGE
(V
OUT
= 0.9V)
FIGURE 2. QUIESCENT CURRENT vs INPUT VOLTAGE
(V
OUT
= 1.85V)
FIGURE 3. QUIESCENT CURRENT vs INPUT VOLTAGE
(V
OUT
= 3.3V)
FIGURE 4. LOAD REGULATION vs TEMPERATURE
(V
OUT
=1.85V)
FIGURE 5. LINE REGULATION vs TEMPERATURE
(V
OUT
= 1.85V)
FIGURE 6. LOAD REGULATION vs TEMPERATURE
(V
OUT
=3.3V)
0
5
10
15
20
25
30
35
40
45
1.52.53.54.55.5
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
T = +85°C
T = +45°C
T = ROOM TEMP
T = 0°C
T = -25°C
T = -40°C
0
5
10
15
20
25
30
35
40
45
1.5 2.5 3.5 4.5 5.5
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
T = +85°C
T = ROOM TEMP
T = 0°C
T = -25°C
T = -40°C
T = +45°C
-10
0
10
20
30
40
50
3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
T = +85°C
T = +45°C
T = ROOM TEMP
T = 0°C
T = -25°C
T = -40°C
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
0 50 100 150 200 250 300
Io (mA)
Vo (V)
-40°C
+25°C
+85°C
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.53.54.55.56.5
V
IN
(V)
Vo (V)
-40°C
+25°C
+85°C
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
0 50 100 150 200 250 300
Io (mA)
Vo (V)
-40°C
+25°C
+85°C
ISL9021
5
FN6867.2
January 14, 2010
FIGURE 7. LINE REGULATION vs TEMPERATURE
(V
OUT
=3.3V)
FIGURE 8. LOAD REGULATION vs TEMPERATURE
(V
OUT
=0.9V)
FIGURE 9. LINE REGULATION vs TEMPERATURE
(V
OUT
=0.9V)
FIGURE 10. LOAD TRANSIENT RESPONSE
FIGURE 11. LOAD TRANSIENT RESPONSE
FIGURE 12. ENABLE FUNCTION (V
IN
= 3.6V, V
OUT
= 1.85V,
C
OUT
1µF)
Typical Operating Performance (Continued)
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.5 4.0 4.5 5.0 5.5 6.0
V
IN
(V)
Vo (V)
-40°C
+25°C
+85°C
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
0 50 100 150 200 250 300
Io (mA)
Vo (V)
-40°C
+25°C
+85°C
0.70
0.75
0.80
0.85
0.90
0.95
1.00
3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
IN
(V)
Vo (V)
-40°C
+25°C
+85°C
V
OUT
= 1.85V
I
OUT
= 1mA TO 250mA
C
OUT
= 1µF
V
OUT
I
OUT
V
IN
= 2.7V
V
OUT
= 1.85V
I
OUT
= 1mA TO 250mA
C
OUT
= 4.7µF
V
OUT
I
OUT
V
IN
= 2.7V
ISL9021
6
FN6867.2
January 14, 2010
Typical Application
FIGURE 13. POWER SUPPLY REJECTION vs FREQUENCY
Pin Descriptions
PIN
NAME DESCRIPTION
VIN IC Supply/LDO Input. Connect a 1µF capacitor to GND.
GND System ground pin.
EN LDO Enable. When this signal goes high, the LDO is turned on.
VO LDO Output. Connect a 1µF to 4.7µF capacitor to GND.
E-Pad For µTDFN package option only. Connect it to the system ground.
Typical Operating Performance (Continued)
-90
-80
-70
-60
-50
-40
-30
-20
100 1k 10k 100k 1M
FREQUENCY (Hz)
PSRR (dB)
V
IN
= 4.5VDC + 50mVAC
C
OUT
= 1µF
I
O
= 0A
I
O
= 10mA
C1, C2: 1µF X5R CERAMIC CAPACITOR
ISL9021
VIN
GND
VO
VIN (1.5V TO 5.5V)
VOUT
C1 C2
EN
ENABLE
OFF
ON
ISL9021
P1-P3P4-P6P7-P9P10-P10

ISL9021IRUJZ-T

Mfr. #:
Buy ISL9021IRUJZ-T
Manufacturer:
Renesas / Intersil
Description:
LDO Voltage Regulators LDO W/LW NOISE HI PSRR LW IQ 1 6 X 1 6
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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