MAX8660ETV+ datasheet(6/43 Pages) MAXIM

Part #	MAX8660ETV+

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

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Efficiency, Low-IQ, PMICs with Dynamic

Voltage Management for Mobile Applications

6

_______________________________________________________________________________________

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

MIN

TYP

MAX

UNITS

REG2—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

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

3.250

3.300

3.350

SET2 not connected, VPV2 = 3.6V,

load = 600mA

2.463

2.500

2.538

V2 Voltage

Accuracy (MAX8660/MAX8860B)

V2

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

1.773

1.800

1.827

V

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

2.463

2.500

2.538

SET2 not connected, VPV2 = 3.6V,

load = 600mA

1.970

2.000

2.030

V2 Voltage Accuracy (MAX8660A)

V2

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

1.773

1.800

1.827

V

V2 Load Regulation

Load = 0 to 900mA

-1.7

%/A

V2 Line Regulation

0.15

%/V

SET2 Input Leakage Current

0.01

µA

V2 Dropout Voltage

Load = 900mA (Notes 3, 4)

225

mV

p-Channel On-Resistance

0.18

Ω

n-Channel On-Resistance

0.15

Ω

p-Channel Current-Limit Threshold

1.10

1.30

1.50

A

n-Channel Zero Crossing Threshold

25

mA

n-Channel Negative Current Limit

Forced-PWM mode only

-800

mA

REG2 Maximum Output Current

IOUT2

2.6V

≤ VPV2 ≤ 6V (Note 5)

0.9

A

V2 Bias Current

5µA

TA = +25°C

-2

±0.03

+2

LX2 Leakage Current

VPV2 = 6V,

LX2 = PG2 or PV2,

VEN2 = 0V

TA = +85°C

0.2

µA

Soft-Start Ramp Rate

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

all V2 output voltages)

2

4

6

mV/µs

V5 to V2 Enable Time

tVMHVSH2 Figure 6

350

µs

Internal Off-Discharge Resistance

650

Ω

Minimum Duty Cycle

Forced-PWM mode only; min duty cycle in

skip mode is 0%

16.7

%

Maximum Duty Cycle

100

%

REG3—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

MAX8860/MAX8660A/MAX8661 REG3

default output voltage, VPV3 = 3.6V,

load = 600mA

1.379

1.400

1.421

MAX8860B REG3 default output voltage,

VPV3 = 3.6V, load = 600mA

1.133

1.150

1.167

V

V3 Output Voltage Accuracy

V3

REG3 serial programmed from 0.9V to 1.8V,

load = 600mA (Note 6)

-1.5

+1.5

%

V3 Load Regulation

Load = 0 to 1600mA

-17

mV/A

V3 Line Regulation

(Note 7)

0.05

%/V

p-Channel On-Resistance

0.12

Ω

n-Channel On-Resistance

0.08

Ω

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MAX8660ETV+ Datasheet(PDF) 6 Page - Maxim Integrated Products

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