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Número de pieza | OCP2030 | |
Descripción | SWITCHING BUCK REGULATOR | |
Fabricantes | ORIENT-CHIP | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de OCP2030 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! OCP2030
SWITCHING BUCK REGULATOR
General Description
The OCP2030 is a buck topology of switching regulator for wide operating voltage applications field. The OCP2030
includes a high current P-MOSFET, high precision reference (0.5V) for comparing output voltage with feedback
amplifier, an internal dead-time control and oscillator for controlling the maximum duty cycle and PWM frequency, and
has power-on programmable soft start time and short circuit PMOS turn-off and auto re-start protection functions.
Features
z Precision feedback reference voltage: 0.5V (2%)
z Wide supply voltage operating range: 3.0 to 20V
z Low current consumption: 5.5mA
z Internal fixed oscillator frequency: Typ. 500KHz
z Programmable Soft-Start function (SS)
z Short Circuit Shutdown and Auto Re-start function(ARSCP)
z Built-in P-MOSFET for 3A loading capability
z Package: SOP8
Typical Application Circuit
Vin
+
1 VCC
LX 8
LX 7
OCP2030
IN- 3
2
SCP
FB
GND GND
4
56
Vout
+
Pin Configuration
Top View
18
27
3 OCP2030 6
45
Name
VCC
SS/SCP
IN-
FB
GND
LX
No. Status
1P
2I
3I
4O
5
6
P
7
8
O
Description
IC Power Supply (PMOS Source)
Connecting with a Soft-start &
ARSCP timing capacitor
Error Amplifier Inverting Input
Error Amplifier Compensation
Output
IC Ground
PMOS High Current Output
www.micro-bridge.com
Page1 - 8
Rev. 1.0 Jan 09, 2007
1 page Typical Characteristics(Continues)
Output Current
VS.
Effciency
93
92
91
90
89 Vcc=10V,Vout=5.0V
88
87
86
85
84 Vcc=10V,Vout=3.3V
83
82
81
80
79
0.5
1 1.5 2 2.5
Output Current (A)
3
3.5
Figure 5
Timing Waveform
OCP2030
SWITCHING BUCK REGULATOR
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.5
Output Load Regulation
Vcc=10V,Vout=5.0V
Vcc=10V,Vout=3.3V
1 1.5 2 2.5 3
Output Current (A)
Figure 6
3.5
www.micro-bridge.com
Figure 7 PWM Timing Diagram
Page5 - 8
Rev. 1.0 Jan 09, 2007
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet OCP2030.PDF ] |
Número de pieza | Descripción | Fabricantes |
OCP2030 | SWITCHING BUCK REGULATOR | ORIENT-CHIP |
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