RC5061 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

RC5061

High Performance Programmable Synchronous DC-DC Controller for Multi-Voltage Platforms

Fairchild Semiconductor 

RC5061

PRODUCT SPECIFICATION

Electrical Specifications (Continued)

(VCCA = 5V, VCCP = 12V, VOUT = 2.0V, and TA = +25°C using circuit in Figure 1 unless otherwise noted.)

The • denotes specifications which apply over the full operating temperature range.

Parameter

Duty Cycle

5V UVLO

12V UVLO

Soft Start Current

VTT Linear Regulator

Output Voltage

Under Voltage Trip Level

VCLK Linear Regulator

Output Voltage

Under Voltage Trip Level

Common Functions

Oscillator Frequency

PWRGD Threshold

Linear Regulator Under

Voltage Delay Time

Conditions

ILOAD ≤ 2A

Over Current

ILOAD ≤ 2A

Over Current

Logic HIGH, All Outputs

Logic LOW, Any Output

Over Current

Min. Typ. Max. Units

0

100

%

• 3.74

4

4.26

V

• 7.65 8.5 9.35

V

•

5

10

17

µA

• 1.455 1.5 1.545

V

80

%VO

• 2.375 2.5 2.625

V

80

%VO

• 255 310 345

kHz

• 92

• 88

108 %VOUT

112

30

µsec

Notes:

1. Steady State Voltage Regulation includes Initial Voltage Setpoint, Droop, Output Ripple and Output Temperature Drift and is

measured at the converter’s VFB sense point.

2. As measured at the converter’s VFB sense point. For motherboard applications, the PCB layout should exhibit no more than

0.5mΩ trace resistance between the converter’s output capacitors and the CPU. Remote sensing should be used for optimal

performance.

3. Using the VFB pin for remote sensing of the converter’s output at the load, the converter will be in compliance with Intel’s

VRM 8.4 specification of +50, –80mV. If Intel specifications on maximum plane resistance from the converter’s output

capacitors to the CPU are met, the specification of +40, –70mV at the capacitors will also be met.

4

REV. 1.0.0 7/6/00

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