FAN2559 Fairchild Semiconductor, FAN2559 Datasheet
FAN2559
Manufacturer Part Number
FAN2559
Description
(FAN2558 / FAN2559) 180mA Low Voltage CMOS LDO
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN2559.pdf
(15 pages)
www.DataSheet4U.com
Typical Application
Features
• Fixed 1.0V, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 3.3V, 3.5V, 3.6V,
• Power Good Indicator with Open Drain Output
• 180mA Output Current
• 100µA Ground Current
• C
• 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 300m 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
FAN2558/FAN2559
180mA Low Voltage CMOS LDO
3.8V and Adjustable Output
bypass
for Low Noise Operation
FB
V
SHDN
EN
GND
CAP+
CAP-
FAN2558
IN
47K
R
PG
V
OUT
PG
C
OUT
V
FB
SHDN
EN
GND
CAP+
CAP-
IN
FAN2558ADJ
47K
R
PG
V OUT
ADJ
PG
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.
R 1
R 2
C
OUT
www.fairchildsemi.com
FB
V I
SHDN
EN
GND
CAP+
CAP-
N
47K
R
FAN2559
PG
V
C B
OUT
PG
YP
REV. 1.0.4 3/15/04
C BYP
C
OUT
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