DatasheetsPDF.com

LDO Regulator. FAN2534 Datasheet

DatasheetsPDF.com

LDO Regulator. FAN2534 Datasheet






FAN2534 Regulator. Datasheet pdf. Equivalent




FAN2534 Regulator. Datasheet pdf. Equivalent





Part

FAN2534

Description

(FAN2534 / FAN2535) 150 mA CMOS LDO Regulator



Feature


www.DataSheet4U.com www.fairchildsemi.c om FAN2534/FAN2535 150 mA CMOS LDO Reg ulator with Fast Start, Enable Features • • • • • • • • • • 70dB Ripple rejection ( >45dB up to 1MHz) 150µsec Power On Time 150µse c Enable Time Low noise - 50µVrms Enab le optimized for CDMA time slices 180 m V dropout voltage at 150 mA Enable/Shut down Control Enable time independent of noi.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN2534 Datasheet


Fairchild Semiconductor FAN2534

FAN2534; se bypass capacitor value SOT23-5 packag e Thermal limiting 300 mA trimmed curre nt limit low dropout voltage, fast enab le required in CDMA handset application s, exceptional loop stability to accomm odate a wide variety of external capaci tors, and a compact SOT23-5 surface-mou nt package. These products offer signi cant improvements over older Bipolar and CMOS designs and.


Fairchild Semiconductor FAN2534

are pin-compatible with many popular de vices. The FAN2534 and FAN2535 devices are distinguished by the assignment of pin 4: FAN2534: pin 4 – ADJ, allowing the user to adjust the output voltage over a wide range using an external vol tage divider. FAN2534-XX: pin 4 – BYP , to which a bypass capacitor may be co nnected for optimal noise performance. Output voltage is fixed.


Fairchild Semiconductor FAN2534

, as specified by the suffix XX. FAN25 35-XX: pin 4 – ERR, a flag which ind icates that the output voltage has drop ped below the specified minimum due to a fault condition. The standard fixed output voltages available are 2.6V, 2. 85V, and 3.0V . Custom output voltages are also available: please contact your local Fairchild Sales Office for info rmation. Applications • • • • C.

Part

FAN2534

Description

(FAN2534 / FAN2535) 150 mA CMOS LDO Regulator



Feature


www.DataSheet4U.com www.fairchildsemi.c om FAN2534/FAN2535 150 mA CMOS LDO Reg ulator with Fast Start, Enable Features • • • • • • • • • • 70dB Ripple rejection ( >45dB up to 1MHz) 150µsec Power On Time 150µse c Enable Time Low noise - 50µVrms Enab le optimized for CDMA time slices 180 m V dropout voltage at 150 mA Enable/Shut down Control Enable time independent of noi.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN2534 Datasheet




 FAN2534
www.DataSheet4U.com
www.fairchildsemi.com
FAN2534/FAN2535
150 mA CMOS LDO Regulator with Fast Start, Enable
Features
• 70dB Ripple rejection ( >45dB up to 1MHz)
• 150µsec Power On Time
• 150µsec Enable Time
• Low noise - 50µVrms
• Enable optimized for CDMA time slices
• 180 mV dropout voltage at 150 mA
• Enable/Shutdown Control
• Enable time independent of noise bypass capacitor value
• SOT23-5 package
• Thermal limiting
• 300 mA trimmed current limit
Applications
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers
Description
The FAN2534/FAN2535 family of micropower low-dropout
voltage regulators utilize CMOS technology to offer a new
level of cost-effective performance in GSM, TDMA, and
CDMA cellular handsets, laptop and notebook computers,
and other portable devices. Proprietary design technics
ensure high ripple rejection. Other features include low
noise, short circuit current limit, thermal shutdown circuit,
low dropout voltage, fast enable required in CDMA handset
applications, exceptional loop stability to accommodate a
wide variety of external capacitors, and a compact SOT23-5
surface-mount package. These products offer significant
improvements over older Bipolar and CMOS designs and are
pin-compatible with many popular devices.
The FAN2534 and FAN2535 devices are distinguished by
the assignment of pin 4:
FAN2534: pin 4 – ADJ, allowing the user to adjust the
output voltage over a wide range using an external voltage
divider.
FAN2534-XX: pin 4 – BYP, to which a bypass capacitor
may be connected for optimal noise performance. Output
voltage is fixed, as specified by the suffix XX.
FAN2535-XX: pin 4 – ERR, a flag which indicates that the
output voltage has dropped below the specified minimum
due to a fault condition.
The standard fixed output voltages available are 2.6V, 2.85V,
and 3.0V . Custom output voltages are also available: please
contact your local Fairchild Sales Office for information.
Block Diagrams
VIN
Bandgap
FAN2534
EN
Error
p
Amplifier
VOUT
Thermal
Sense
ADJ
GND
VIN
Bandgap
EN
Error
Amplifier
p
Thermal
Sense
FAN2534-XX
BYP
VIN
Bandgap
VOUT
EN
Error
Amplifier
p
ERR
VOUT
GND
Thermal
Sense
FAN2535-XX
GND
REV. 1.0.2 8/26/03




 FAN2534
FAN2534/FAN2535
www.DataSheet4U.com
Pin Assignments
PRODUCT SPECIFICATION
VIN 1 FB
SHDN
GND 2
CAP+
EN 3 CAP-
5 VOUT
4 ADJ/BYP/ERR
Pin No.
1.
2.
3.
4.
5.
FAN2534
VIN
GND
EN
ADJ
VOUT
FAN2534-XX
VIN
GND
EN
BYP
VOUT
FAN2535-XX
VIN
GND
EN
ERR
VOUT
Pin Descriptions
Pin Name Pin No.
Type
ADJ 4 Input
BYP
ERR
4 Passive
4 Open drain
EN 3 Digital Input
VIN
VOUT
GND
1 Power in
5 Power out
2 Power
Pin Function Description
FAN2534 Adjust. Ratio of potential divider from VOUT to ADJ
determines output voltage.
FAN2534-XX Bypass. Connect 10 nF capacitor for noise reduction.
FAN2535-XX Error. Error flag output.
LOW when Vout< 95% of nominal; HIGH when Vout> 95% of nominal.
Enable.
LOW in Shutdown Mode; HIGH in Enable Mode
Voltage Input. Supply voltage input.
Voltage Output. Regulated output voltage.
Ground.
Absolute Maximum Ratings (Note 1)
Parameter
Power Supply Voltages
VIN (Measured to GND); Enable Input (EN);
ERR Output;
Power Dissipation
Operating Junction Temperature
Lead Soldering (5 seconds)
Storage
Electrostatic Discharge (Note 2)
Min.
0
-65
-65
4
Typ.
Max.
7
Internally limited
150
260
150
Unit
V
°C
°C
°C
kV
2 REV. 1.0.2 8/26/03




 FAN2534
PRODUCT SPECIFICATION
www.DataSheet4U.com
Operating Conditions
Symbol
VIN
VOUT
VOUT
VEN
VERR
TJ
θJA
θJC
Parameter
Input Voltage Range
Output Voltage Range
FAN2534-XX, FAN2535-XX (Note 3)
Output Voltage Range (FAN2534 only)
Enable Input Voltage
ERR Flag Voltage
Junction Temperature
Thermal resistance
Thermal resistance
DC Electrical Characteristics (Notes 4, 5)
Symbol
Parameter
Regulator
VDO Drop Out Voltage (Note 6)
VO Output Voltage Accuracy
(Note 7)
IGND(NL) Ground Pin Current
IGND(FL) Ground Pin Current
Protection
Current Limit
IGSD
TSH
Shut-Down Current
Thermal Shutdown
Temperature
Hysteresis
ETL ERR Trip Level
Enable Input
VEL Logic Low Voltage
VEH Logic High Voltage
IEH Input Current High
IEL Input Current Low
Conditions
IOUT = 100 µA
IOUT = 50 mA
IOUT = 100 mA
IOUT = 150 mA
Initial Accuracy at no
load
Over Line, Load &
Temp
No Load
IOUT = 150 mA
EN = 0V
FAN2535 only
Min.
VOUT+VDO
2.3
Typ.
2.0
0
-40
220
130
Min.
-1
-3.7
90
1.4
Typ.
2.5
50
100
180
90
110
300
155
15
93
0.4
2
FAN2534/FAN2535
Max.
6.5
3.3
5.0
VIN
VIN
+125
Units
V
V
V
V
V
°C
°C/W
°C/W
Max.
Units
4 mV
75 mV
140 mV
220 mV
1%
2%
µA
µA
400 mA
1 µA
°C
°C
96 %
1.2 V
V
1 µA
1 µA
REV. 1.0.2 8/26/03
3






Recommended third-party FAN2534 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)