MAX8662 Просмотр технического описания (PDF) - Maxim Integrated

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MAX8662

Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices

Maxim Integrated 

Power-Management ICs for

Single-Cell, Li+ Battery-Operated Devices

Typical Operating Characteristics (continued)

(Circuit of Figure 1, VDC = 5V, RPSET = 1.5kΩ, RISET = 3kΩ, VOUT1 = 3.3V, VOUT2 = 1.3V, SL1 = SL2 = open, VCEN = 0V, VPEN1 =

VPEN2 = 5V, COUT1 = 2 x 10µF, COUT2 = 2 x 10µF, COUT3 = 0.1µF, COUT4 = 4.7µF, COUT5 = 1µF, COUT6 = 2.2µF, COUT7 = 1µF, CT =

0.068µF, CREF = CVL = 0.1µF, RTHM = 10kΩ, L1 = 3.3µH, L2 = 4.7µH, L3 = 22µH, VGND = VPG1 = VPG2 = VPG3 = 0V, TA = +25°C,

unless otherwise noted.)

OUT5 REGULATOR LOAD-

TRANSIENT RESPONSE

MAX8662/63 toc54

OUT5 REGULATOR LINE-

TRANSIENT RESPONSE

MAX8662/63 toc55

5V

VIN45 3.6V

2V/div

IOUT5

100mA/div

VOUT5

AC-COUPLED

50mV/div

VBAT = 4.0V

IOUT5 = 10mA TO 150mA TO 10mA

40µs/div

VOUT5

AC-COUPLED

20mV/div

IOUT5 = 10mA

100µs/div

OUT5 ENABLE AND DISABLE RESPONSE

MAX8662 toc56

VCEN = VL

ROUT5 = 33I

VOUT5

2V/div

IDC

200mA /div

VEN5

2V/div

400µs/div

OUT5 REGULATOR DROPOUT VOLTAGE

vs. LOAD CURRENT

70

THE SLOPE OF THIS LINE SHOWS THAT

THE DROPOUT RESISTANCE OF AN

60 AVERAGE PART AND BOARD

COMBINATION IS 384mΩ.

50

40

30

20

10

0

0

30

60

90 120 150

IOUT (mA)

OUT6 REGULATOR LOAD REGULATION

3.310

3.306

3.302

3.298

3.294

VIN = 5.5V

VIN = 3.6V

3.290

0

50 100 150 200 250 300

LOAD CURRENT (mA)

OUT6 REGULATOR LINE REGULATION

3.4

RLOAD = 330Ω

3.2

3.0

2.8

2.6

2.4

2.2

2.0

1.8

1.6

1.4

1

2

3

4

5

6

VIN_OUT6 (V)

OUT6 VOLTAGE vs. TEMPERATURE

3.309

VBAT = 4.0V

RLOAD = 330Ω

3.307

3.305

3.303

3.301

-40 -15

10

35

60

85

AMBIENT TEMPERATURE (°C)

______________________________________________________________________________________ 15

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