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OCP2030 Datasheet

SWITCHING BUCK REGULATOR

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OCP2030 pdf
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
ORIENT-CHIP
ORIENT-CHIP



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