Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

LM2618ATL Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM2618ATL
Descripción Electrónicos  400mA Sub-miniature, High Efficiency, Synchronous PWM & PFM Programmable DC-DC Converter
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2618ATL Datasheet(HTML) 1 Page - National Semiconductor (TI)

  LM2618ATL Datasheet HTML 1Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 2Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 3Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 4Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 5Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 6Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 7Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 8Page - National Semiconductor (TI) LM2618ATL Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 15 page
background image
LM2618
400mA Sub-miniature, High Efficiency, Synchronous
PWM & PFM Programmable DC-DC Converter
General Description
The LM2618 step-down DC-DC converter is optimized for
powering low voltage circuits from a single Lithium-Ion cell. It
provides up to 400mA (300mA for B grade), over an input
voltage range of 2.8V to 5.5V. Pin programmable output
voltages of 1.80V, 1.83V, 1.87V or 1.92V allow adjustment
for MPU voltage options without board redesign or external
feedback resistors. Internal synchronous rectification pro-
vides high efficiency in both PWM and PFM operation.
The device has three pin-selectable modes for maximizing
battery life in mobile phones and similar portable applica-
tions. Low-noise PWM mode offers 600kHz fixed-frequency
operation to reduce interference in RF and data acquisition
applications during full-power operation. A SYNC input al-
lows synchronizing the switching frequency in a range of
500kHz to 1MHz to avoid noise from intermodulation with
system frequencies. Low-current hysteretic PFM mode re-
duces quiescent current to 180 µA (typ.) during system
standby. Shutdown mode turns the device off and reduces
battery consumption to 0.02µA (typ.). Additional features
include soft start and current overload protection.
The LM2618 is available in a 10 pin micro SMD packge. This
package uses National’s wafer level chip-scale micro SMD
technology and offers the smallest possible size. Only three
small external surface-mount components, an inductor and
two ceramic capacitors are required.
Key Specifications
n
Operates from a single LiION cell (2.8V to 5.5V)
n
Internal synchronous rectification provides high
efficiency in both PWM and PFM
n
Pin programmable output voltage (1.80V, 1.83V, 1.87V
and 1.92V)
n
400mA maximum load capability (300mA for B grade)
n ±
2% PWM mode DC output voltage precision
n
5mV typ PWM mode output voltage ripple
n
180 µA typ PFM mode quiescent current
n
0.02µA typ shutdown mode current
n
Internal synchronous rectification for high efficiency
(91% at 3.0V
IN, 1.92VOUT)
n
600kHz PWM mode switching frequency
n
SYNC input for PWM mode frequency synchronization
from 500kHz to 1MHz
Features
n
Sub-miniature 10-pin micro SMD package
n
Only three tiny surface-mount external components
required
n
Uses small ceramic capacitors.
n
Internal soft start
n
Current overload protection
n
Thermal Shutdown Protection
n
No external compensation required
Applications
n
Mobile Phones
n
Hand-Held Radios
n
Battery Powered Devices
Typical Application Circuit
20036402
September 2002
© 2002 National Semiconductor Corporation
DS200364
www.national.com


Número de pieza similar - LM2618ATL

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
National Semiconductor ...
LM261 NSC-LM261 Datasheet
271Kb / 10P
   High Speed Differential Comparators
logo
Seoul Semiconductor
LM261 SEOUL-LM261 Datasheet
376Kb / 14P
   INFRARED LAMP LED
LM261 SEOUL-LM261 Datasheet
360Kb / 13P
   CYAN LAMP LED
LM261 SEOUL-LM261 Datasheet
392Kb / 14P
   RED OVAL LAMP LED
LM261 SEOUL-LM261 Datasheet
392Kb / 14P
   RED OVAL LAMP LED
More results

Descripción similar - LM2618ATL

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
National Semiconductor ...
LM2608 NSC-LM2608 Datasheet
728Kb / 18P
   400mA Sub-miniature, High Efficiency, Programmable DC-DC Converter with Linear Mode
logo
Shenzhen Huazhimei Semi...
HM6384 HMSEMI-HM6384 Datasheet
818Kb / 7P
   high efficiency PFM synchronous boost DC-DC converter
logo
QX Micro Devices Co.,Lt...
QX2304 QXMD-QX2304 Datasheet
240Kb / 2P
   High-efficiency PFM synchronous boost DC-DC converter
logo
SHENZHEN FUMAN ELECTRON...
FM2306 FUMAN-FM2306 Datasheet
619Kb / 7P
   High efficiency PFM synchronous step-up DC/DC converter
logo
Richtek Technology Corp...
RT8025 RICHTEK-RT8025 Datasheet
217Kb / 13P
   1.25MHz, 400mA, High Efficiency PWM Step-Down DC/DC Converter
RT8024 RICHTEK-RT8024 Datasheet
369Kb / 13P
   1.5MHz, 400mA, High Efficiency PWM Step-Down DC/DC Converter
logo
ELM Technology Corporat...
ELM611DA ELM-TECH-ELM611DA Datasheet
983Kb / 11P
   high efficiency synchronous PWM step down DC/DC converter
logo
ELM Electronics
ELM620BA ELM-ELM620BA Datasheet
892Kb / 10P
   high efficiency synchronous PWM step up DC/DC converter
logo
ELM Technology Corporat...
ELM600XB ELM-TECH-ELM600XB_17 Datasheet
1Mb / 7P
   high efficiency synchronous PWM step down DC/DC converter
logo
ELM Electronics
ELM600LA ELM-ELM600LA Datasheet
1Mb / 10P
   high efficiency synchronous PWM step down DC/DC converter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com