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PDF RM6513 Data sheet ( Hoja de datos )
| Número de pieza | RM6513 | |
| Descripción | PWM Control 2A Step-Down Converter | |
| Fabricantes | REACTOR | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RM6513 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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DESCRIPTION
RM6513 consists of step-down switching
regulator with PWM control. These devices include
a reference voltage source, oscillation circuit, error
amplifier, internal PMOS and etc.
RM6513 provides low-ripple power, high
efficiency, and excellent transient characteristics.
The PWM control circuit is able to vary the duty
ratio linearly from 0 up to 100%. An enable function,
an over current protect function and a short circuit
protect function are built inside, and when OCP or
SCP happens, the operation frequency will be
reduced from 380KHz to 35KHz. Also, an internal
compensation block is built in to minimum external
component count.
With the addition of an internal P-channel
Power MOS, a coil, capacitors, and a diode
connected externally, these ICs can function as
step-down switching regulators. They serve as
ideal power supply units for portable devices when
coupled with the SOP–8L mini-package, providing
such outstanding features as low current
consumption. Since this converter can
accommodate an input voltage up to 18V, it is also
suitable for the operation via an AC adapter.
RM6513
PWM Control 2A Step-Down Converter
FEATURES
■ Input voltage: 3.6V to 18V
■ Output voltage: 0.8V to VCC
■ Duty ratio: 0% to 100% PWM control
■ Oscillation frequency: 380KHz typ
■ Current limit, Enable function
■ Thermal Shutdown function
■ Built-in internal SW P-channel MOS
■ SOP-8L Pb-Free Package
Applications
■ Battery Charger Adapter
■ PC Motherboard
■ LCD Monitor
■ Graphic Card
■ DVD-Video Player
■ Telecom Equipment
■ ADSL Modem
■ Printer and other Peripheral Equipment
■ Microprocessor core supply
■ Networking power supply
TYPICAL APPLICATION
+12V
U1
4 Vcc
Output 5
R1
+ EC1
R2
10K_5%
EN
Output 6
3.3K_5% 3 OCSET
Vss 7
1 FB
Vss 8
RM6513
L1 33uH_3A
D1
RA 10.5K_X5R_1%
RB
C1
22nF_X5R
+5V_2A
+ EC2
Note: VOUT = VFB x (1+RA/RB) ，RB=0.7K~5K ohm
www.reactor-micro.com
Sep.2009
1 page  
TEST WAVEFORM
Vin=12V,Vout=3.3V
Turn on, Load Current =1A
Turn on, Load Current =2A
CH1:D1 Waveform;CH2:Output Voltage;
CH4:Output Current
Turn off, Load Current =1A
CH1:D1Waveform;CH2:Output Voltage;
CH4:Output Current
Turn off, Load Current =2A
CH2:Output Voltage;CH4:Output Current
Inrush Current, Load Current =1A
CH2:Output Voltage;CH4:Output Current
Inrush Current, Load Current =2A
CH4:Output Current
CH4:Output Current
www.reactor-micro.com
Sep.2009
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet RM6513.PDF ] | |
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