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CS51033YD8

Fast PFET Buck Controller Does Not Require Compensation

Cherry semiconductor 

Electrical Characteristics: Specifications apply for 3.135 ≤ VCC ≤ 3.465V, 3V ≤ VC ≤ 16V,

-40°C ≤ TJ ≤ 125°C, unless otherwise specified.

PARAMETER

TEST CONDITIONS

MIN

TYP MAX

s Power Stage

GATE DC Low Saturation

Voltage

GATE DC High Saturation

Voltage

Rise Time

Fall Time

VC = 10V; VFB = 1.2V

VCOSC = 1V; 200mA Sink

VCOSC = 2.7V; 200mA Source; VC = VGATE

CGATE = 1nF; 1.5V < VGATE < 9V

CGATE = 1nF; 9V > VGATE > 1.5V

1.2

1.5

1.5

2.1

25

60

25

60

UNIT

V

V

ns

ns

s Current Drain

ICC

IC

3.135V < VCC < 3.465V, Gate switching

3V < VC < 16V, Gate non-switching

3.5

6.0

mA

2.7

4.0

mA

Note1: Guaranteed by design not 100% tested in production.

PACKAGE PIN #

8L SO Narrow & PDIP

1

2

3

4

5

6

7

8

Package Pin Description

PIN SYMBOL

FUNCTION

VGATE

PGnd

COSC

Gnd

VFB

VCC

CS

VC

Driver pin to gate of external PFET.

Output power stage ground connection.

Oscillator frequency programming capacitor.

Logic ground.

Feedback voltage input.

Logic supply voltage.

Soft start and fault timing capacitor.

Driver supply voltage.

3

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