NCP5424 datasheet(7/20 Pages) ONSEMI

Part #	NCP5424

Description	Dual Synchronous Buck Controller with Input Current Sharing

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP5424

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7

VCC

Set

Dominant

IS+1

PWM

Comparator 1

PWM

Comparator 2

Reset

Dominant

CURRENT

SOURCE

GEN

BST

FAULT

BIAS

R

S

R

S

R

S

RAMP1

GATE(H)1

0.40 V

0.25 V

GND

COMP1

−

+

−

+

−

+

−

+

−

COMP2

VFB1

RAMP2

FAULT

Reset

Dominant

GATE(L)1

GATE(H)2

GATE(L)2

VCC

BST

VCC

RAMP1

RAMP2

CLK1

CLK2

OSC

0.40 V

E/A2

E/A OFF

E/A1

E/A OFF

ROSC

Q

1.2 mA

VFB- 2

1.0 V

VCC

−

+

−

+

IS-

IS+2

−

8.6 V

70 mV

BST

Figure 2. Block Diagram

7.8 V

VFB+2

5

mA

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Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5424	137Kb / 18P	Dual Synchronous Buck Controller with Input Current Sharing March, 2005 ??Rev. 4
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NCP5424 Datasheet(PDF) 7 Page - ON Semiconductor

NCP5424 Datasheet(HTML) 7 Page - ON Semiconductor

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