DataSheet.es    


PDF LM2773 Data sheet ( Hoja de datos )

Número de pieza LM2773
Descripción Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator
Fabricantes National Semiconductor 
Logotipo National Semiconductor Logotipo



Hay una vista previa y un enlace de descarga de LM2773 (archivo pdf) en la parte inferior de esta página.


Total 12 Páginas

No Preview Available ! LM2773 Hoja de datos, Descripción, Manual

January 22, 2008
LM2773
Low-Ripple 1.8V/1.6V Spread-Spectrum Switched
Capacitor Step-Down Regulator
General Description
The LM2773 is a switched capacitor step-down regulator that
produces a selectable 1.8V or 1.6V output. It is capable of
supplying loads up to 300mA. The LM2773 operates with an
input voltage from 2.5V to 5.5V, accommodating 1-cell Li-Ion
batteries and chargers.
The LM2773 utilizes a regulated charge pump with gains of
2/3x and 1x. It has very low ripple and noise on both the input
and output due to its pre-regulated 1.15MHz (typ.) switching
frequency and spread spectrum operation. When output cur-
rents are low, the LM2773 automatically switches to a low-
ripple PFM regulation mode to maintain high efficiency over
the entire load range.
The LM2773 is available in National’s 0.5mm pitch 9-bump
Micro-SMD (µSMD-9).
Features
Low-Noise Spread Spectrum Operation
1.8V/1.6V Selectable Output Voltage
2% Output Voltage Regulation
> 75% Efficiency in 1.8V Mode
Very Low Output Ripple: 10mV @ 300mA
Output Currents up to 300mA
2.5V to 5.5V Input Voltage Range
Shutdown Disconnects Load from VIN
1.15MHz Switching Frequency
No Inductors…Small Solution Size
Short Circuit and Thermal Protection
0.5mm pitch, µSMD-9 (1.511 × 1.511mm × 0.6mm)
Applications
Power Supply for DSP's, Memory, and Microprocessors
Mobile Phones and Pagers
Digital Cameras, Portable Music Players, and Other
Portable Electronic Devices
Typical Application Circuit
LM2773 Efficiency vs.
Low-Dropout Linear Regulator (LDO) Efficiency
30047401
© 2008 National Semiconductor Corporation 300474
www.DataSheet.in
30047410
www.national.com

1 page




LM2773 pdf
Typical Performance Characteristics Unless otherwise specified: VIN = 3.6V, CIN = C1 = C2 = 1.0µF,
COUT = 4.7µF, V(EN) = 1.8V, V(SEL) = 0V, TA = 25°C. Capacitors are low-ESR multi-layer ceramic capacitors (MLCC's).
Output Voltage vs. Input Voltage, 1.8V Mode
Output Voltage vs. Input Voltage, 1.6V Mode
30047404
Output Voltage vs. Output Current, 1.8V Mode
30047405
Output Voltage vs. Output Current, 1.6V Mode
30047406
30047407
www.DataSheet.in
5 www.national.com

5 Page





LM2773 arduino
Physical Dimensions inches (millimeters) unless otherwise noted
TLA09ZZA: 9-Bump Micro-SMD Package
x1: 1.511mm
x2: 1.511mm
x3: 0.6mm
www.DataSheet.in
11 www.national.com

11 Page







PáginasTotal 12 Páginas
PDF Descargar[ Datasheet LM2773.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
LM2770LM2770 High Efficiency Switched Cap Step-Down DC/DC Regulator w/Sleep Mode (Rev. E)Texas Instruments
Texas Instruments
LM2770High Efficiency Switched Capacitor Step-Down DC/DC RegulatorNational Semiconductor
National Semiconductor
LM2771LM2771 Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter (Rev. A)Texas Instruments
Texas Instruments
LM2771Low-Ripple 250mA Switched Capacitor Step-Down DC/DC ConverterNational Semiconductor
National Semiconductor

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
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,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar