MAX5008CUB 查看數據表（PDF） - Maxim Integrated

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MAX5008CUB

Regulated 5V USB Charge Pump with Programmable Current Limit

Maxim Integrated 

Regulated 5V USB Charge Pump with

Programmable Current Limit

ABSOLUTE MAXIMUM RATINGS

IN, SHDN, RCS, FAULT, OUT to GND .....................-0.3V to +6V

PGND to GND.....................................................................±0.3V

CXN to GND ................................................-0.3V to (VIN + 0.3V)

CXP to GND ............................................-0.3V to (VCEXT + 0.3V)

CEXT to GND ..........................................-0.3V to (VCEXT + 0.3V)

Short-Circuit Duration to GND .......................................Indefinite

Continuous Power Dissipation (TA = +70°C)

10-Pin µMAX.................................................................444mW

Operating Temperature Range...............................0°C to +70°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VIN = SHDN = 3V, CIN = 4.7µF, CX = 0.68µF, CEXT = 6.8µF, COUT = 4.7µF, RCS = 0.4Ω, TA = 0°C to +70°C, unless otherwise noted.

Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Input Voltage Range

(Note 1)

VIN

IOUT = 125mA, 4.75V ≤ VOUT ≤ 5.25V

IOUT = 70mA

2.95

2.95

4.25

V

5.50

Input Undervoltage Lockout

Threshold

Rising edge

2.0 2.35 2.6

V

Input Undervoltage Lockout

Hysteresis

Falling edge

Output Voltage

(Note 2)

Output Voltage Ripple

VOUT Fault Threshold

Maximum Output Current

No-Load Input Current

SHDN Logic High

SHDN Logic Low

Shutdown Supply Current

Current-Sense Trip Level

FAULT Leakage Current

FAULT Logic Low

FAULT Assertion Delay

(Note 4)

FAULT Deassertion Delay (Note 5)

Switching Frequency

VOUT

VRIP

VTH

IOUT

IQ

VINH,SHDN

VINL,SHDN

IQSHDN

VCS

tFD

tFDD

0 ≤ IOUT < 30mA, 2.95V < VIN < 5.5V

0mA ≤ IOUT ≤ 125mA, 2.95V ≤ VIN ≤ 4.25V

0mA ≤ IOUT ≤ 125mA

VOUT = 5V (nominal), no load

VOUT = 5V ±4%

IOUT = 0, VIN = 4.25V

IOUT = 0, VIN = 3.3V

SHDN = low

VCS = IOUT x RCS (Note 3)

VFAULT = 5V, OUT in regulation

IOUT > ILIMIT, or VOUT < VTH, IFAULT = 1mA

IOUT > ILIMIT

VOUT < VTH

IOUT < ILIMIT and VOUT > 4.5V

100

mV

4.75 5.0 5.30

V

4.75 5.0 5.25

100

mV

82.5

92.5 %VOUT

100 140

mA

0.6

6

mA

1

6

2.4

V

0.4

V

0.1

10

µA

55

60

73

mV

1

µA

0.4

V

2

ms

30

µs

16

ms

0.5

1

1.5 MHz

Startup Time

tSTART

VOUT > VTH, RLOAD = 46Ω, from rising edge

of SHDN

200

µs

2 _______________________________________________________________________________________

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