CS5150 datasheet(8/18 Pages) ONSEMI

Part #	CS5150

Description	CPU 4?묪it Synchronous Buck Controller

Download	18 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

8 / 18 page

CS5150

http://onsemi.com

8

the Soft Start COMP clamp and the voltage on the Soft Start

pin (see Figures 4 and 5).

Figure 4. CS5150 Demonstration Board Startup in

Response to Increasing 12 V and 5.0 V Input Voltages.

Extended Off Time is Followed by Normal Off Time

Operation when Output Voltage Achieves Regulation to

the Error Amplifier Output.

M 250 μs

Trace 3− 12 V Input (VCC1 and VCC2) (5.0 V/div.)

Trace 1− Regulator Output Voltage (1.0 V/div.)

Trace 4− 5.0 V Input (1.0 V/div.)

Trace 2− Inductor Switching Node (2.0 V/div.)

Figure 5. CS5150 Demonstration Board Startup

Waveforms

M 2.50 ms

Trace 3− COMP PIn (error amplifier output) (1.0 V/div.)

Trace 1− Regulator Output Voltage (1.0 V/div.)

Trace 4− Soft Start Pin (2.0 V/div.)

If the input voltage rises quickly, or the regulator output

is enabled externally, output voltage will increase to the

level set by the error amplifier output more rapidly, usually

within a couple of cycles (see Figure 6).

Figure 6. CS5150 Demonstration Board Enable Startup

Waveforms

M 10.0 μs

Trace 1− Regulator Output Voltage (5.0 V/div.)

Trace 2− Inductor Switching Node (5.0 V/div.)

Normal Operation

During normal operation, switch off time is constant and

set by the COFF capacitor. Switch on time is adjusted by the

V2 control loop to maintain regulation. This results in

changes in regulator switching frequency, duty cycle, and

output ripple in response to changes in load and line. Output

voltage ripple will be determined by inductor ripple current

working into the ESR of the output capacitors (see Figures

7 and 8).

Figure 7. Peak−to−Peak Ripple on VOUT = 2.8 V,

IOUT = 0.5 A (Light Load)

M 1.00 μs

Trace 1− Regulator Output Voltage (10 mV/div.)

Trace 2− Inductor Switching Node (5.0 V/div.)

Similar Part No. - CS5150

Manufacturer	Part #	Datasheet	Description
Cherry Semiconductor Co...	CS5150	236Kb / 14P	CPU 4-Bit Synchronous Buck Controller
	CS5150GD16	236Kb / 14P	CPU 4-Bit Synchronous Buck Controller
	CS5150GDR16	236Kb / 14P	CPU 4-Bit Synchronous Buck Controller
	CS5150GN16	236Kb / 14P	CPU 4-Bit Synchronous Buck Controller
	CS5150H	322Kb / 14P	CPU 4-Bit Synchronous Buck Controller

More results

Similar Description - CS5150

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	CS5150H	623Kb / 17P	CPU 4?묪it Synchronous Buck Controller July, 2006 ??Rev. 4
	CS5157H	432Kb / 16P	CPU 5?묪it Synchronous Buck Controller October, 2005 ??Rev. 7
	CS5161	589Kb / 18P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 12
	CS5165H	722Kb / 21P	5?묪it Synchronous CPU Buck Controller July, 2006 ??Rev. 5
	CS5160	584Kb / 18P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 6
	CS5158	607Kb / 16P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 6
	CS5155H	623Kb / 17P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 3
	CS5157	603Kb / 16P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 7
	CS5165	718Kb / 21P	5?묪it Synchronous CPU Buck Controller July, 2006 ??Rev. 4
	CS5155	635Kb / 18P	CPU 5?묪it Synchronous Buck Controller July, 2006 ??Rev. 4

More results

CS5150 Datasheet(PDF) 8 Page - ON Semiconductor

CS5150 Datasheet(HTML) 8 Page - ON Semiconductor

Similar Part No. - CS5150

Similar Description - CS5150

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Datasheet Download

Link URL