ML4901CS Ver la hoja de datos (PDF) - Micro Linear Corporation

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ML4901CS

High Current Synchronous Buck Controller

Micro Linear Corporation 

ML4901

ELECTRICAL CHARACTERISTICS (Continued)

SYMBOL

PARAMETER

CONDITIONS

MIN

BUCK REGULATOR (continued)

VFB Threshold Voltage

DAC (D3-D0) Code = 0000

DAC (D3-D0) Code = 0001

3.500

3.400

DAC (D3-D0) Code = 0010

3.300

DAC (D3-D0) Code = 0011

3.200

DAC (D3-D0) Code = 0100

3.100

DAC (D3-D0) Code = 0101

3.000

DAC (D3-D0) Code = 0110

2.900

DAC (D3-D0) Code = 0111

2.800

DAC (D3-D0) Code = 1000

2.700

DAC (D3-D0) Code = 1001

2.600

DAC (D3-D0) Code = 1010

2.500

DAC (D3-D0) Code = 1011

2.400

DAC (D3-D0) Code = 1100

2.299

DAC (D3-D0) Code = 1101

2.198

DAC (D3-D0) Code = 1110

2.097

DAC (D3-D0) Code = 1111

ISENSE Threshold Voltage

-85

ISENSE Hysteresis

PROTECT Discharge Current

PROTECT Leakage Current

V(ISENSE) = -120mV

SUPPLY

Transition Time, N DRV and P DRV

CL = 5000pF, 10-90%

VDD Current

SHDN = 0V

DAC (D3-D0) Code = 0000

SHDN = 5V, VFB = 5V

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

TYP

3.535

3.434

3.333

3.232

3.131

3.03

2.929

2.828

2.727

2.626

2.525

2.424

2.323

2.222

2.121

-95

3

35

+100

40

300

1

30

MAX UNITS

3.570

V

3.468

V

3.366

V

3.264

V

3.162

V

3.060

V

2.958

V

2.856

V

2.754

V

2.652

V

2.550

V

2.448

V

2.347

V

2.246

V

2.145

V

0.8

V

-105

mV

mV

µA

nA

ns

450

µA

2

mA

mA

Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.

4

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