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Электронный компонент: FAN2558S18X

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www.fairchildsemi.com
REV. 1.0.4 3/15/04
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
100A Ground Current
C
bypass
for Low Noise Operation
Fast Enable for CDMA Applications
High Ripple Rejection
Current Limit
Thermal Shutdown
Excellent Line and Load Regulation
Requires Only 1F 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
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
1F, 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.
FAN2558/FAN2559
180mA Low Voltage CMOS LDO
Typical Application
C
OUT
FB
SHDN
CAP+
CAP-
GND
V
IN
R
1
R
2
ADJ
V
OUT
EN
PG
FAN2558ADJ
FB
SHDN
CAP+
CAP-
GND
V
IN
R
PG
R
PG
R
PG
V
OUT
C
OUT
EN
PG
FAN2558
FB
SHDN
CAP+
CAP-
GND
V
I
N
C
B
YP
V
OUT
C
OUT
C
BYP
EN
PG
FAN2559
47K
47K
47K
2
REV. 1.0.4 3/15/04
FAN2558/FAN2559
PRODUCT SPECIFICATIONS
Pin Assignments
Pin Descriptions
Pin no.
Pin Name
FAN2558
FAN2558ADJ
FAN2559
5SOT-23
2x2mm MLP-6
6SOT-23
2x2mm MLP-6
6SOT-23
2x2mm MLP-6
1
V
IN
V
OUT
V
IN
V
OUT
V
IN
V
OUT
2
GND.
NC
GND.
ADJ
GND.
BYP
3
EN
PG
EN
PG
EN
PG
4
PG
EN
PG
EN
PG
EN
5
V
OUT
GND
ADJ
GND
BYP
GND
6
V
IN
V
OUT
V
IN
V
OUT
V
IN
Symbol
Pin Function Description
V
IN
Power Supply Input
V
OUT
Regulated Voltage Output
GND
Ground Connection
PG
Power Good Output, Open Drain
ADJ
Ratio of potential divider from V
out
to ADJ determines output voltage
BYP
Reference Noise Bypass
EN
Chip Enable Input. The regulator is fully enabled when TTL "H" is applied to this input. The regulator
enters into shutdown mode when TTL "L" is applied to this input.
FAN2558
5-Lead SOT-23 PACKAGE
GND
V
IN
EN
PG
VOUT
1
2
3
4
5
FAN2558/FAN2558ADJ/FAN2559
2x2mm MLP-6 PACKAGE
V
OUT
PG
NC/ADJ/BYP
GND
V
IN
EN
FAN2558ADJ/FAN2559
6-Lead SOT-23 PACKAGE
GND
V
IN
EN
ADJ/BYP
PG
VOUT
1
2
3
4
5
6
TOP-VIEW
1
2
3
6
5
4
PRODUCT SPECIFICATIONS
FAN2558/FAN2559
REV. 1.0.4 3/15/04
3
Absolute Maximum Ratings
Recommended Operating Conditions
Notes:
1. Using Mil Std. 883E, method 3015.7 (Human Body Model) and EIA/JESD22C101-A (Charge Device Model)
2. Junction to ambient thermal resistance,
JC
, is a strong function of PCB material, board thickness, thickness and number of
copper plains, number of via used, diameter of via used, available copper surface, and attached heat sink characteristics.
Parameter
Min.
Max.
Units
V
IN
to GND
6
V
Voltage on any other pin to GND
-0.3
V
IN
+ 0.3
V
Junction Temperature (T
J
)
-55
150
C
Storage Temperature
-65
150
C
Lead Soldering Temperature, 10 seconds
300
C
Power Dissipation (P
D
)
Internally
Limited
W
Electrostatic Discharge (ESD) Protection (Note1)
HBM
4
kV
CDM
1
Parameter
Min.
Typ.
Max.
Units
Supply Voltage Range, V
IN
for V
OUT
< 2.0V
2.7
5.5
V
Supply Voltage Range, V
IN
for V
OUT
2.0V
V
OUT
+ V
DROPOUT
5.5
V
Load Current
180
mA
Enable Input Voltage V
EN
0
V
IN
V
Power Good Output Voltage Range V
PG
0
V
IN
V
Junction Temperature
-40
125
C
Thermal Resistance-Junction to Ambient SOT-23 (Note 2)
235
C/W
Thermal Resistance-Junction to Case, 2mm x 2mm
6-lead MLP
75
4
REV. 1.0.4 3/15/04
FAN2558/FAN2559
PRODUCT SPECIFICATIONS
Electrical Characteristics
Note:
3. Guaranteed 1% output voltage accuracy parts are available on customer request.
4. Measured at constant junction temperature using low duty cycle pulse testing.
5. V
IN
min = 2.7V or (V
OUT
+ 1V), whichever is greater.
V
IN
= V
IN
min (note 5) to 5.5V, V
EN
= V
IN
, I
LOAD
= 100
A, T
A
= -40C to +85C, unless otherwise noted. Typical values
are at 25C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
OUT
Output Voltage Accuracy
(Note 3)
I
LOAD
= 100
A
-2
1
2
%
V
OUT(ADJ)
Output Voltage Range
(Adjustable)
I
LOAD
= 100
A
1
V
IN
V
V
OUT_LNR
Line Regulation
V
IN
min < V
IN
< 5.5V
-0.3
0.3
%/V
V
OUT_LDR
Load Regulation (Note 4)
I
LOAD
= 0.1mA to 150mA
2.5
4
%
I
SD
Supply Current in Shutdown
Mode
V
EN
< 0.4V
PG = No Connection
0.1
A
I
GND
Ground Pin Current (Note 4)
I
LOAD
= 0mA, V
IN
= 5.5V
90
150
A
I
LOAD
= 150mA, V
IN
= 5.5V
110
150
I
LIM
Current Limit
V
OUT
= 0V
260
350
500
mA
T
SD
Thermal Shutdown
Temperature
150
C
Thermal Shutdown Hysteresis
10
C
V
ENL
Enable Input Low
V
IN
= 5.5V, Shutdown
0.4
V
V
ENH
Enable Input High
V
IN
= 5.5V, Enabled
1.6
V
I
E
Enable Input Current
V
ENL
0.4V, V
IN
= 5.5V
0.01
A
V
ENH
1.6V, V
IN
= 5.5V
0.01
V
PG
Low Threshold
% of V
OUT
PG ON
89
%
High Threshold
% of V
OUT
PG OFF
97
%
V
PGL
PG Output Low Voltage
I
PG_SINK
= 100
A,
Fault Condition
0.02
0.1
V
I
PG
PG Leakage Current
PG off, V
PG
=5.5V
0.01
A
T
EN
Enable Response Time
C
OUT
= 1
F
C
BYPASS
= 10nF
30
300
S
T
ON
Power "ON" Delay Time
C
OUT
= 1
F
C
BYPASS
= 10nF
V
ENL
1.6V,
V
IN
= 0V to V
OUT
+ 1V
300
500
S
D
PG
PG Delay time
1
5
mS
V
DROP-OUT
Dropout Voltage
(For Adjustable Output
Version)
V
OUT
> 2.7V and
I
LOAD
= 180mA
400
mV
V
FB_ADJ
Feedback Voltage
(For Adjustable Output
Version)
0.59
V
PRODUCT SPECIFICATIONS
FAN2558/FAN2559
REV. 1.0.4 3/15/04
5
DC Electrical Characteristics
(Continued)
V
IN
= V
IN
min (note 5) to 5.5V, V
EN
= V
IN
, I
LOAD
= 100
A, T
A
= -40C to +85C, unless otherwise noted. Typical
values are at 25C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
PSRR
Power Supply Rejection Ratio
DC to 100kHz
C
OUT
=1
F
C
BYPASS
= 10nF
I
LOAD
= 0 to 150mA
V
OUT
1.8V
50
dB
e
N
Output Noise
BW: 300Hz to 50kHz
C
OUT
=1
F
C
BYPASS
= 10nF
I
LOAD
= 0 to 150mA
30
V
RMS