MAX8662 데이터 시트보기 (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.)

OUT6 REGULATOR LOAD-

TRANSIENT RESPONSE

MAX8662/63 toc61

OUT6 REGULATOR LINE-

TRANSIENT RESPONSE

MAX8662/63 toc62

IOUT6

200mA/div

5V

VIN67 3.6V

2V/div

VOUT6

AC-COUPLED

50mV/div

VOUT6

AC-COUPLED

20mV/div

VBAT = 4.0V

IOUT6 = 10mA TO 300mA TO 10mA

40µs/div

IOUT6 = 10mA

100µs/div

OUT6 ENABLE AND DISABLE RESPONSE

MAX8662 toc63

VCEN = VL

ROUT6 = 33I

VOUT6

2V/div

IDC

200mA /div

VEN6

2V/div

400µs/div

OUT6 REGULATOR DROPOUT VOLTAGE

vs. LOAD CURRENT

80

THE SLOPE OF THIS LINE SHOWS THAT

70 THE DROPOUT RESISTANCE OF AN

AVERAGE PART AND BOARD

60 COMBINATION IS 238mΩ.

50

40

30

20

10

0

0 50 100 150 200 250 300

IOUT (mA)

OUT7 REGULATOR LOAD REGULATION

3.304

3.302

3.300

3.298

3.296

VIN = 5.5V

VIN = 3.6V

3.294

0

30

60

90 120 150

LOAD CURRENT (mA)

OUT7 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_OUT7 (V)

OUT7 VOLTAGE vs. TEMPERATURE

3.303

VBAT = 4.0V

RLOAD = 330Ω

3.302

3.301

3.300

3.299

3.298

-40 -15

10

35

60

85

AMBIENT TEMPERATURE (°C)

16 ______________________________________________________________________________________

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