|
|
PDF MAX832CWE Data sheet ( Hoja de datos )
| Número de pieza | MAX832CWE | |
| Descripción | 5V/3.3V/3V/Adjustable-Output / 1A / Step-Down / PWM / Switch-Mode DC-DC Regulators | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX832CWE (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
|
No Preview Available !
19-0167; Rev 2; 6/95
EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL
5V/3.3V/3V/Adjustable-Output, 1A,
Step-Down, PWM, Switch-Mode DC-DC Regulators
_______________General Description
The MAX830/MAX831/MAX832/MAX833 are monolithic,
bipolar, pulse-width-modulation (PWM), switch-mode, step-
down DC-DC regulators. Each is rated at 1A. Very few
external components are needed for standard operation
because the power switch, oscillator, feedback, and control
circuitry are all on-chip. Employing a classic buck topology,
these regulators perform high-current step-down functions.
These regulators have excellent dynamic and transient
response characteristics, while featuring cycle-by-cycle cur-
rent limiting to protect against overcurrent faults and short-
circuit output faults. They have a wide 8V to 30V input
range. Outputs for the MAX831/MAX832/MAX833 are fixed
at 5V/3.3V/3V, respectively. The MAX830 output is
adjustable.
Available in 16-pin SO packages, the MAX830–MAX833
have a preset 100kHz oscillator frequency. In addition,
the preset current limit and micropower shutdown can be
externally controlled. See the MAX724/MAX726 data
sheet for more applications information.
_______________________Applications
Distributed Power from High-Voltage Buses
High-Current, High-Voltage Step-Down Applications
Multiple-Output Buck Converter
___________________________Features
o Input Range: Up to 30V
o 1A On-Chip Power Switch
o Adjustable Output (MAX830)
Fixed Outputs: 5V (MAX831)
3.3V (MAX832)
3V (MAX833)
o 100kHz Switching Frequency
o Excellent Dynamic Characteristics
o Few External Components
o 8mA Quiescent Current
o 16-Pin SO Package
o Evaluation Kit Available
______________Ordering Information
PART
MAX830CWE
MAX831CWE
MAX832CWE
MAX833CWE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Wide SO
16 Wide SO
16 Wide SO
16 Wide SO
__________Typical Operating Circuit __________________Pin Configuration
INPUT
8V TO 30V
100µF
VIN VSW
MAX831
VC SENSE
10k
GND
0.047µF
100µH*
OUTPUT
5V AT 1A
MBR350
470µF
STEP-DOWN CONVERTER
* CoilCraft DO3316-104
TOP VIEW
VIN 1
VIN 2
VIN 3
VIN 4
GND 5
ILIM 6
GND 7
(FB) SENSE 8
MAX830
MAX831
MAX832
MAX833
16 VSW
15 VSW
14 VSW
13 VSW
12 GND
11 VC
10 GND
9 SHUT
Wide SO
Tj (MAX) = +125°C, θjA = +55°C/W*
( ) ARE FOR MAX830
* THIS THERMAL RESISTANCE NUMBER IS WITH THE DEVICE WELL MOUNTED
ON 1 oz. COPPER WITH THERMAL PASTE BETWEEN THE IC AND THE
UNDERLYING GROUND PLANE. LOWER THERMAL RESISTANCE IS POSSIBLE
(SEE APPLICATIONS SECTION).
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
1 page  
5V/3.3V/3V/Adjustable-Output, 1A,
Step-Down, PWM, Switch-Mode DC-DC Regulators
Table 1. MAX830 Maximum Load Current (continuous with qjA = +55°C/W) vs.
Output Voltage and Ambient Temperature
OUTPUT VOLTAGE
TA = +25°C
CONTINUOUS LOAD CURRENT
TA = +45°C
TA = +70°C
Up to 10V
1A
1A
1A
10V to 15V
1A
1A 0.8A
15V to 20V
1A
0.8A
0.7A
20V to 25V
0.8A
0.7A
0.6A
Table 2. MAX831/MAX832/MAX833 Maximum Load Current (continuous with
qjA = +55°C/W) vs. Ambient Temperature
OUTPUT VOLTAGE
Fixed:
5V, 3.3V or 3V
TA = +25°C
1A
CONTINUOUS LOAD CURRENT
TA = +45°C
1A
TA = +70°C
1A
INPUT
UP TO 30V
100µF
VIN VSW
MAX830
VC FB
10k
GND
0.047µF
100µH
MBR350
R1
R2
[ ]VOUT = 1 + R1 x 2.21V
R2
VOUT
470µF
STEP-DOWN CONVERTER
Figure 1. MAX830 Typical Operating Circuit
_______________________________________________________________________________________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MAX832CWE.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX832CWE | 5V/3.3V/3V/Adjustable-Output / 1A / Step-Down / PWM / Switch-Mode DC-DC Regulators | Maxim Integrated |
| 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 |