MAX8833(2007) 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX8833
(Rev.:2007)

Dual, 3A, 2MHz Step-Down Regulator

Maxim Integrated 

Dual, 3A, 2MHz Step-Down Regulator

ELECTRICAL CHARACTERISTICS (continued)

(VIN = VVDD = VVDL = 3.3V, VFB = 0.5V, VSS_ = VREFIN = 600mV, PGND_ = GND, RFSYNC = 10kΩ, L = 0.47µH, CBST_ = 0.1µF, CSS =

0.022µF, PWRGD not connected; TA = -40°C to +85°C, typical values are at TA = +25°C, unless otherwise noted.) (Note 2)

PARAMETER

REFIN, SS2

REFIN Input Bias Current

REFIN Common-Mode Range

CONDITIONS

VFB_ = 0.610V

VVDD = 2.35V to 2.6V

VVDD = 2.6V to 3.6V

TA = +25°C

TA = +85°C

MIN TYP MAX UNITS

90

500

nA

65

0

VVDD -

1.65

V

0

VVDD -

1.70

LX1, LX2 (All Pins Combined)

LX_ On-Resistance, High

LX_ On-Resistance, Low

LX_ Current-Limit Threshold

LX_ Leakage Current

LX_ Switching Frequency

LX_ Minimum Off-Time

LX_ Minimum On-Time

LX_ Maximum Duty Cycle

Maximum LX_ Output Current

EN1, EN2

EN_ Logic-Low

EN_ Logic-High

EN_ Input Current

SS1, SS2

SS_ Charging Current

REFIN, SS2

Discharge Resistance

THERMAL SHUTDOWN

ILX_ = -2A

VIN = VBST - VLX_ = 3.3V

40

VIN = VBST - VLX_ = 2.5V

42

ILX_ = -2A

VIN = 3.3V

VIN = 2.5V

High-side sourcing and freewheeling

35

37

4.6

5.5

VIN = 3.6V,

VEN = 0V

VLX_ = 3.6V

VLX_ = 0V

RFSYNC = 10kΩ

TA = +25°C

TA = +85°C

TA = +25°C

TA = +85°C

-0.1

-10

-0.1

0.9

1.0

RFSYNC = 4.75kΩ

1.80

2.0

50

95

RFSYNC = 10kΩ

90

95

3

55

mΩ

54

mΩ

6.4

A

10

µA

1.1

MHz

2.2

ns

ns

%

ARMS

VEN_ = 0 or 3.6V,

VVDD = 3.6V

TA = +25°C

TA = +85°C

0.7

V

1.7

V

-1

+1

µA

0.01

VSS_ = 300mV

5

8

11

µA

In shutdown or a fault condition

335

Ω

Thermal-Shutdown Threshold

(Independent Channels)

+165

°C

Thermal-Shutdown Hysteresis

20

°C

_______________________________________________________________________________________ 3

Share Link: