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PDF AX6608 Data sheet ( Hoja de datos )
| Número de pieza | AX6608 | |
| Descripción | Low Noise LDO Regulator | |
| Fabricantes | AXElite | |
| Logotipo |  |
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AX6608
300mA High PSRR, Low Noise LDO
Regulator
GENERAL DESCRIPTION
The AX6608 is a low dropout, high PSRR, low noise linear regulator with very low
quiescent. It can supply 300mA output current with low dropout about 250mV. The Device
includes pass element, error amplifier, band-gap, current-limit and thermal shutdown
circuitry. The characteristics of low dropout voltage and less quiescent current make it good
for some critical current application, for example, some battery powered devices. The typical
quiescent current is approximately 30µA. In the shutdown mode, the maximum supply
current is less than 1uA. Due to internal flexible design, result in extensively fixed output
voltage versions is 1.0V to 3.3V per 0.1V steps. Built-in current-limit and thermal-shutdown
functions prevent any fault condition from IC damage.
FEATURES
- Input voltage range : 2.8V~5.5V
- Dropout voltage is 250mV at 300mA output current
- Guaranteed 300mA output current
- Low quiescent current is 30µA (typ.)
- Maximum supply current in shutdown mode <1uA
- Fixed Output voltage is 1.0V to 3.3V by 0.1V steps.
- High PSRR=73dB@1KHz
- Fast transient response
- Current limit and thermal shutdown protection
- Available in the 5-Pin Pb-Free SOT-23, SC70, TDFN-6L, SC82-4L and MSOP-8L
Packages
BLOCK DIAGRAM
VIN VOUT
Current
Limit
EN Enable
Thermal
Shutdown
Error
Amp
-+
Bandgap
GND
BP
1/15
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.1 Dec.28, 2011
1 page  
AX6608
ELECTRICAL CHARACTERISTICS
(VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=COUT=1uF, TA=25°C, unless otherwise
noted)
Characteristics Symbol
Conditions
Min Typ Max Units
Input Voltage
VIN (Note1)
2.8 - 5.5 V
Output Voltage Accuracy ΔVOUT IOUT=1mA
-2 - +2 %
Quiescent Current
IQ IOUT =0mA
- 30 60 μA
1.0V≦VOUT≦2.0V - 1500 -
Dropout Voltage
(Note2)
VDROP
IOUT=300mA
1.5V＜VOUT≦2.0V
2.0V＜VOUT≦2.8V
-
-
1000
350
-
-
mV
2.8V＜VOUT≦3.3V - 250 -
Current Limit
ILIMIT RLOAD=1Ω
Line Regulation
ΔVLINE
IOUT =1mA,
VIN=VOUT+1V to 5V
Load Regulation (Note3) ΔVLOAD IOUT =0m~150mA
300 -
-1
-6
-
5
20
mA
mV
mV
Ripple Rejection
PSRR
COUT=1uF,
IOUT =1mA
F=1KHz
F=10K
- -73 -
- -60 -
dB
Enable Input Threshold
VENH
VENL
1.4 - -
- - 0.4
V
Enable Pin Current
IEH VEN=VIN
- - 0.1 μA
Shutdown Current
ISD VIN=3.6V, VEN=0V
- - 1 μA
Temperature Coefficient TC IOUT=1mA, VIN=5V
- 50 - ppm/°C
Temperature Shutdown TS
- 160 - ºC
Temperature
Shutdown Hysterisis
TSH
- 25 - ºC
Note1. Minimum VIN voltage is defined by output adds a dropout voltage.
Note2. The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drop about 100mV.
Note3. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time.
5/15
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.1 Dec.28, 2011
5 Page 
PACKAGE OUTLINES
(1) SOT-23-5L
D
e
e1
θ1(4x)
AX6608
C
GAUGE PLANE
L
L1
DETAL A
θ
b(5x)
θ2(4x)
Symbol
Dimensions in Millimeters
Min. Nom. Max.
A-
- 1.45
A1 0.00
0.08
0.15
A2 0.90
1.10
1.30
b 0.30 0.40 0.50
C 0.08 0.15
0.22
D 2.70 2.90
3.10
E1 1.40
1.60
1.80
E 2.60 2.80 3.00
L 0.30 0.45 0.60
L1 0.50 0.60
0.70
e1 1.9 BSC
e 0.95 BSC
θ 0o
4o
8o
θ1 5o 10o 15o
θ2 5o 10o 15o
JEDEC outline: MO-178 AA
DETAL A
Dimensions in Inches
Min. Nom. Max.
- - 0.057
0 0.003 0.006
0.035
0.043
0.051
0.012
0.016
0.020
0.003
0.006
0.009
0.106
0.114
0.122
0.055
0.063
0.071
0.102
0.110
0.118
0.012
0.018
0.024
0.020
0.024
0.028
0.075 BSC
0.037 BSC
0o 4o 8o
5o 10o 15o
5o 10o 15o
11/15
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.1 Dec.28, 2011
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AX6608.PDF ] | |
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