|
|
PDF LP2985IM5X-5.0 Data sheet ( Hoja de datos )
| Número de pieza | LP2985IM5X-5.0 | |
| Descripción | Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LP2985IM5X-5.0 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
March 2000
LP2985
Micropower 150 mA Low-Noise Ultra Low-Dropout
Regulator
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2985 is a 150 mA, fixed-output voltage regulator de-
signed to provide ultra low-dropout and low noise in battery
powered applications.
Using an optimized VIP™ (Vertically Integrated PNP) pro-
cess, the LP2985 delivers unequalled performance in all
specifications critical to battery-powered designs:
Dropout Voltage: Typically 300 mV @ 150 mA load, and
7 mV @ 1 mA load.
Ground Pin Current: Typically 850 µA @ 150 mA load, and
75 µA @ 1 mA load.
Enhanced Stability: The LP2985 is stable with output ca-
pacitor ESR as low as 5 mΩ, which allows the use of ceramic
capacitors on the output.
Sleep Mode: Less than 1 µA quiescent current when
ON/OFF pin is pulled low.
Smallest Possible Size: SOT-23 and micro SMD packages
use absolute minimum board space.
Precision Output: 1% tolerance output voltages available
(A grade).
Low Noise: By adding a 10 nF bypass capacitor, output
noise can be reduced to 30 µV (typical).
Multiple voltage options, from 2.5V to 5.0V, are available as
standard products. Consult factory for custom voltages.
Features
n Ultra low dropout voltage
n Guaranteed 150 mA output current
n Smallest possible size (SOT-23, micro SMD package)
n Requires minimum external components
n Stable with low-ESR output capacitor
n <1 µA quiescent current when shut down
n Low ground pin current at all loads
n Output voltage accuracy 1% (A Grade)
n High peak current capability
n Wide supply voltage range (16V max)
n Low ZOUT: 0.3Ω typical (10 Hz to 1 MHz)
n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range
n Custom voltages available
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
Block Diagram
VIP™ is a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation DS100140
DS100140-1
www.national.com
1 page  
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Operating Junction Temperature Range
Lead Temp. (Soldering, 5 sec.)
ESD Rating (Note 2)
Power Dissipation (Note 3)
−65˚C to +150˚C
−40˚C to +125˚C
260˚C
2 kV
Internally Limited
Input Supply Voltage (Survival)
Input Supply Voltage (Operating)
Shutdown Input Voltage (Survival)
Output Voltage (Survival, (Note 4))
IOUT (Survival)
Input-Output Voltage (Survival,
(Note 5))
−0.3V to +16V
2.5V to +16V
−0.3V to +16V
−0.3V to +9V
Short Circuit
Protected
−0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for TJ = 25˚C. and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
LP2985AI-X.X
LP2985I-X.X
Symbol
Parameter
Conditions
Typ (Note 6)
(Note 6)
Units
Min Max Min Max
∆VO
Output Voltage
IL = 1 mA
Tolerance
1 mA ≤ IL ≤ 50 mA
1 mA ≤ IL ≤ 150 mA
−1.0 1.0 −1.5 1.5
−1.5 1.5 −2.5 2.5
−2.5 2.5 −3.5 3.5 %VNOM
−2.5 2.5 −3.0 3.0
−3.5 3.5 −4.0 4.0
Output Voltage
Line Regulation
VO(NOM)+1V ≤ VIN ≤ 16V
0.007
0.014
0.032
0.014
0.032
%/V
VIN– VO
IGND
VON/OFF
ION/OFF
en
Dropout Voltage
(Note 7)
IL = 0
IL = 1 mA
IL = 10 mA
IL = 50 mA
IL = 150 mA
Ground Pin Current
IL = 0
IL = 1 mA
IL = 10 mA
IL = 50 mA
IL = 150 mA
ON/OFF Input Voltage
(Note 8)
ON/OFF Input Current
Output Noise
Voltage (RMS)
VON/OFF < 0.3V
VON/OFF < 0.15V
High = O/P ON
Low = O/P OFF
VON/OFF = 0
VON/OFF = 5V
BW = 300 Hz to 50 kHz,
COUT = 10 µF
CBYPASS = 10 nF
13 3
55
7 10 10
15 15
40 60
90
60
mV
90
120 150 150
225 225
280 350 350
575 575
65 95
95
125 125
75 110 110
170 170
120 220 220
400 400
µA
350 600 600
1000
1000
850 1500 1500
2500
2500
0.01 0.8
0.8
0.05 2
2
1.4 1.6
1.6
0.55 0.15 0.15
V
0.01 −2
5 15
−2
µA
15
30 µV
5 www.national.com
5 Page 
Typical Performance Characteristics Unless otherwise specified: CIN = 1µF, COUT = 4.7µF, VIN =
VOUT(NOM) +1, TA = 25˚C, ON/OFF pin is tied to VIN. (Continued)
Load Transient Response
Load Transient Response
Line Transient Response
DS100140-33
Line Transient Response
DS100140-34
Line Transient Response
DS100140-35
Line Transient Response
DS100140-36
DS100140-37
DS100140-38
11 www.national.com
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LP2985IM5X-5.0.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LP2985IM5X-5.0 | Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors | National Semiconductor |
| LP2985IM5X-5.0 | Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors | National Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |