ML4900CS datasheet(4/8 Pages) MICRO-LINEAR

Part #	ML4900CS

Description	High Current Synchronous Buck Controller

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Manufacturer	MICRO-LINEAR [Micro Linear Corporation]

Direct Link	http://www.microlinear.com

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ML4900

4

ELECTRICAL CHARACTERISTICS (Continued)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

BUCK REGULATOR (continued)

VFB Threshold Voltage

DAC (D3-D0) Code = 0000

3.495

3.535

3.575

V

DAC (D3-D0) Code = 0001

3.400

3.434

3.468

V

DAC (D3-D0) Code = 0010

3.300

3.333

3.366

V

DAC (D3-D0) Code = 0011

3.200

3.232

3.264

V

DAC (D3-D0) Code = 0100

3.100

3.131

3.162

V

DAC (D3-D0) Code = 0101

3.000

3.03

3.060

V

DAC (D3-D0) Code = 0110

2.900

2.929

2.958

V

DAC (D3-D0) Code = 0111

2.800

2.828

2.856

V

DAC (D3-D0) Code = 1000

2.700

2.727

2.754

V

DAC (D3-D0) Code = 1001

2.600

2.626

2.652

V

DAC (D3-D0) Code = 1010

2.500

2.525

2.550

V

DAC (D3-D0) Code = 1011

2.400

2.424

2.448

V

DAC (D3-D0) Code = 1100

2.299

2.323

2.347

V

DAC (D3-D0) Code = 1101

2.198

2.222

2.246

V

DAC (D3-D0) Code = 1110

2.097

2.121

2.145

V

DAC (D3-D0) Code = 1111

0.8

V

ISENSE Threshold Voltage

-66

-73

-80

mV

ISENSE Hysteresis

3mV

PROTECT Discharge Current

V(ISENSE) = -100mV

35

mA

PROTECT Leakage Current

+100

nA

Transition Time, N DRV H and N DRV L

CL = 5000pF, 10-90%

40

ns

SUPPLY

VDD Current

SHDN = 0V

300

450

µA

DAC (D3-D0) Code = 0000

SHDN = 5V, VFB = 5V

1

2

mA

SHDN = 5V, VFB = 0V, CL = 5000pF

30

mA

Note 1:

Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.

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