MAX8952AEWE-T 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8952AEWE-T

2.5A Step-Down Regulator with Remote Sense in 2mm x 2mm WLP

Maxim Integrated 

MAX8952

2.5A Step-Down Regulator

with Remote Sense in 2mm x 2mm WLP

ELECTRICAL CHARACTERISTICS (continued)

(VIN1 = VIN2 = 3.6V, VAGND = VPGND = 0V, VDD = 1.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA =

+25°C.) (Note 2)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

No load, VIN_ = 2.5V to 5.5V, VOUT = 1.27V,

FPWM_EN_ = 1

-0.5

+0.5

OUT Voltage Accuracy

No load, VIN_ = 2.5V to 5.5V, VOUT = 0.77V,

FPWM_EN_ = 1

-1.0

+1.0

%

Load Regulation

RAMP Timer

Peak Current Limit

(p-Channel MOSFET)

No load, VIN_ = 2.5V to 5.5V, VOUT = 1.40V,

FPWM_EN_ = 1

RL is the resistance from LX to SNS+ (output)

RAMP[2:0] = 000

RAMP[2:0] = 001

RAMP[2:0] = 010

RAMP[2:0] = 011

RAMP[2:0] = 100

RAMP[2:0] = 101

RAMP[2:0] = 110

RAMP[2:0] = 111

-0.5

+0.5

RL/25

32.50

16.25

8.125

4.063

2.031

1.016

0.508

0.254

V/A

mV/µs

3.45

4.2

4.8

A

Valley Current Limit

(n-Channel MOSFET)

Hysteretic mode

2.7

3.6

4.5

A

Negative Current Limit

(n-Channel MOSFET)

PWM mode

2.0

2.5

3.0

A

n-Channel Zero-Crossing

Threshold

LX pFET On-Resistance

LX nFET On-Resistance

LX Leakage

Operating Frequency

IN2 to LX, ILX = -200mA

FPWM_EN_ = 0,

LX to PGND, ILX = 200mA

VLX = 5.5V or 0V

Internal oscillator, PWM mode

TA = +25°C

TA = +85°C

Internal oscillator, power-save mode before entering

PWM mode

13MHz = fSYNC, SYNC[1:0] = 01

19.2MHz = fSYNC, SYNC[1:0] = 10 or 11

26MHz = fSYNC, SYNC[1:0] = 00

50

0.08 0.16

0.06 0.12

-1

0.03

+1

0.05

2.82 3.25 3.56

2.43 3.25 4.06

fSYNC/4

fSYNC/6

fSYNC/8

mA

Ω

Ω

µA

MHz

4

Maxim Integrated

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