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PDF LP3983ITL-2.5 Data sheet ( Hoja de datos )
| Número de pieza | LP3983ITL-2.5 | |
| Descripción | Micropower/ Low Quiescent Current/ CMOS Voltage Regulator in micro SMD Package | |
| Fabricantes | National Semiconductor | |
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May 2003
LP3983
Micropower, Low Quiescent Current, CMOS Voltage
Regulator in micro SMD Package
General Description
The LP3983 is a fixed voltage low current regulator.
The LP3983 is ideally suited to standby type applications in
battery powered equipment, it allows the lifetime of the bat-
tery to be maximized. The device can be controlled via an
Enable(disable) control and can thus be used by the system
to further extend the battery lifetime by reducing the power
consumption to virtually zero.
Performance is specified for a -40˚C to 125˚C temperature
range.
For output voltages other than those stated and alternative
package options, please contact your local NSC sales office.
Features
n Miniature 5 pin package
n Logic Controlled Enable
n No Noise Bypass Capacitor Required
n Stable with Low ESR Ceramic Capacitors
n Fast turn ON
n Short Circuit Protection
Key Specifications
n Input Voltage Range
n Output Voltages
n Output Current
n Output Capacitors
n Virtually Zero IQ (Disabled)
n Low IQ (Enabled)
n PSRR
n Fast Start Up
Applications
n GSM Portable Phones
n CDMA Cellular Handsets
n Bluetooth Devices
n Portable Information Appliances
2.5 to 6.0V
1.6, 1.8, & 2.5
5mA
1µF Low ESR
1.0µA
14µA
10dB
170µs
Package
n Tiny 5 Pin micro SMD
828µm by 1387µm
Typical Application Circuit
© 2003 National Semiconductor Corporation DS200576
20057601
www.national.com
1 page  
Electrical Characteristics (Continued)
Note 7: This electrical specification is guaranteed by design.
Note 8: Time from VEN = 1.2V to VOUT = 95% of VOUT(NOM)
Note 9: The minimum VIN is dependant on the device output option.
For VOUT(NOM) ≤ 2.7V, VIN(MIN) will equal 2.5V. For VOUT(NOM) > 2.7V, VIN(MIN) will equal VOUT(NOM) + 200mV.
Note 10: All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with TJ = 25˚C or correlated using
Statistical Quality Control methods. Operation over the temperature specification is guaranteed by correlating the electrical characteristics to process and
temperature variations and applying statistical process control.
Note 11: The target output voltage which is labelled VOUT(NOM) is the desired voltage option.
Output Capacitor, Recommended Specifications
Symbol
Parameter
Co Output Capacitor
Conditions
Capacitance(Note 12)
ESR
Value
1.0
Limit
Min Max
0.75
5 500
Note 12: The capacitor tolerance should be ±25% or better over the temperature range. Capacitor types recommended are X7R, Y5V, and Z5U.
Units
µF
mΩ
5 www.national.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LP3983ITL-2.5.PDF ] | |
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