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PDF FAN2559 Data sheet ( Hoja de datos )
| Número de pieza | FAN2559 | |
| Descripción | (FAN2558 / FAN2559) 180mA Low Voltage CMOS LDO | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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FAN2558/FAN2559
180mA Low Voltage CMOS LDO
Features
• Fixed 1.0V, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 3.3V, 3.5V, 3.6V,
3.8V and Adjustable Output
• Power Good Indicator with Open Drain Output
• 180mA Output Current
• 100µA Ground Current
• Cbypass for Low Noise Operation
• Fast Enable for CDMA Applications
• High Ripple Rejection
• Current Limit
• Thermal Shutdown
• Excellent Line and Load Regulation
• Requires Only 1µF Output Capacitor
• Stable with 0 to 300mΩ ESR
• TTL-level Compatible Enable Input
• Active Output Discharge
Applications
• Processor Power-up sequencing
• PDAs, Cell Phones
• Portable Electronic Equipment
• PCMCIA Vcc and Vpp regulation/switching
General Description
The FAN2558/9 low voltage CMOS LDOs feature fixed or
adjustable output voltage, 180mA load current, delayed
power good output (open drain) and 1% output accuracy
with excellent line and load regulation. An external bypass
capacitor provides ultra-low noise operation.
The FAN2558/9 low voltage LDOs incorporate both thermal
shutdown and short circuit protection. Output is stable with a
1µF, low ESR capacitor. The FAN2558/9 family is available
in 5-Lead SOT-23, 6-Lead SOT-23 and 2x2mm MLP-6
packages.
FAN2558: Fixed Output LDO with Power Good output
FAN2558ADJ: Adjustable Output LDO with Power Good
output
FAN2559: Fixed Output LDO with Power Good output,
Low Noise
Available standard output voltages are 1.0, 1.2V, 1.3V, 1.5V,
1.8V, 2.5V, 3.3V, 3.5V, 3.6V, and 3.8V. Custom output volt-
age options are also available.
Typical Application
47KΩ
RPG
VFIBN VOUT
SHDN
GND
CAP+
ECNAP- PG
C OUT
47KΩ
RPG
VFIBN VOUT
SHDN
GND ADJ
CAP+
ECNAP- PG
R1
R2
C OUT
47KΩ
RPG
VFIBN VOUT
SHDN
GND CBYP
CAP+
ECNAP- PG
C OUT
C BYP
FAN2558
FAN2558ADJ
FAN2559
REV. 1.0.4 3/15/04
1 page  
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PRODUCT SPECIFICATIONS
FAN2558/FAN2559
DC Electrical Characteristics (Continued)
VIN = VIN min (note 5) to 5.5V, VEN = VIN, ILOAD = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical
values are at 25°C.
Symbol
Parameter
PSRR Power Supply Rejection Ratio
eN Output Noise
Conditions
DC to 100kHz
COUT =1µF
CBYPASS= 10nF
ILOAD = 0 to 150mA
VOUT ≤ 1.8V
BW: 300Hz to 50kHz
COUT =1µF
CBYPASS= 10nF
ILOAD = 0 to 150mA
Min.
Typ.
50
30
Max.
Units
dB
µVRMS
REV. 1.0.4 3/15/04
5
5 Page 
www.DataSheet4U.com
PRODUCT SPECIFICATIONS
FAN2558/FAN2559
Typical Performance Characteristics (Continued)
Unless otherwise specified, CIN = COUT = 1µF, RPG = 47kΩ, TA = 25°C, EN = VIN
Power Good Delay vs. Input Voltage
Output Voltage vs. Input Voltage
ILOAD = 100µA
ILOAD =100µA
Input Voltage (V)
ILOAD =180mA
Input Voltage (V)
Output Voltage vs. Load Current
COUT =1µF
VIN =2.7V
Output Voltage vs. Enable Voltage
COUT =1µF
ILOAD =100µA
Load Current (mA)
Ripple Rejection vs. Frequency
VOUT ≤ 1.8V
ILOAD =0mA
COUT =1µF
CBYP = 10nF
Enable Voltage (V)
Ripple Rejection vs. Frequency
VOUT ≤ 1.8V
ILOAD =180mA
COUT =1µF
CBYP = 10nF
REV. 1.0.4 3/15/04
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet FAN2559.PDF ] | |
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