MAX8660B(2009) 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX8660B
(Rev.:2009)

High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applications

Maxim Integrated 

High-Efficiency, Low-IQ, PMICs with Dynamic

Voltage Management for Mobile Applications

ELECTRICAL CHARACTERISTICS (continued)

(VIN = VIN5 = VIN67 = VIN8 = 3.6V, Figure 3, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

REG2—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

SET2 = IN, VPV2 = 4.2V, load = 600mA

V2 Voltage

Accuracy (MAX8660/MAX8860B)

V2

SET2 not connected, VPV2 = 3.6V,

load = 600mA

V2 Voltage Accuracy (MAX8660A)

SET2 = AGND, VPV2 = 3.6V, load = 600mA

SET2 = IN, VPV2 = 4.2V, load = 600mA

V2

SET2 not connected, VPV2 = 3.6V,

load = 600mA

V2 Load Regulation

SET2 = AGND, VPV2 = 3.6V, load = 600mA

Load = 0 to 900mA

V2 Line Regulation

SET2 Input Leakage Current

V2 Dropout Voltage

Load = 900mA (Notes 3, 4)

p-Channel On-Resistance

n-Channel On-Resistance

p-Channel Current-Limit Threshold

n-Channel Zero Crossing Threshold

n-Channel Negative Current Limit

Forced-PWM mode only

REG2 Maximum Output Current

V2 Bias Current

IOUT2 2.6V ≤ VPV2 ≤ 6V (Note 5)

LX2 Leakage Current

Soft-Start Ramp Rate

VPV2 = 6V,

LX2 = PG2 or PV2,

VEN2 = 0V

TA = +25°C

TA = +85°C

To V2 = 1.8V (total ramp time is 450µs for

all V2 output voltages)

V5 to V2 Enable Time

tVMHVSH2 Figure 6

Internal Off-Discharge Resistance

Minimum Duty Cycle

Forced-PWM mode only; min duty cycle in

skip mode is 0%

Maximum Duty Cycle

REG3—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

MAX8860/MAX8660A/MAX8661 REG3

default output voltage, VPV3 = 3.6V,

load = 600mA

V3 Output Voltage Accuracy

V3

MAX8860B REG3 default output voltage,

VPV3 = 3.6V, load = 600mA

REG3 serial programmed from 0.9V to 1.8V,

load = 600mA (Note 6)

V3 Load Regulation

Load = 0 to 1600mA

V3 Line Regulation

(Note 7)

p-Channel On-Resistance

n-Channel On-Resistance

MIN

3.250

2.463

1.773

2.463

1.970

1.773

1.10

0.9

-2

2

1.379

1.133

-1.5

TYP

3.300

2.500

1.800

2.500

2.000

1.800

-1.7

0.15

0.01

225

0.18

0.15

1.30

25

-800

5

±0.03

0.2

4

350

650

16.7

100

1.400

1.150

-17

0.05

0.12

0.08

MAX

3.350

2.538

1.827

2.538

2.030

1.827

1.50

+2

6

1.421

1.167

+1.5

UNITS

V

V

%/A

%/V

µA

mV

Ω

Ω

A

mA

mA

A

µA

µA

mV/µs

µs

Ω

%

%

V

%

mV/A

%/V

Ω

Ω

6 _______________________________________________________________________________________

Share Link: