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.)

OUT4 REGULATOR LOAD-

TRANSIENT RESPONSE

MAX8662/63 toc47

OUT4 REGULATOR LINE-

TRANSIENT RESPONSE

MAX8662/63 toc48

5V

IOUT4

500mA/div

VIN45 3.6V

2V/div

VOUT4

AC-COUPLED

50mV/div

VBAT = 4.0V

IOUT4 = 10mA TO 500mA TO 10mA

40µs/div

VOUT4

AC-COUPLED

20mV/div

100µs/div

IOUT4 = 10mA

OUT4 ENABLE AND DISABLE RESPONSE

MAX8662 toc49

VCEN = VL

ROUT4 = 33I

2V/div

VOUT4

IDC

200mA /div

VEN4

2V/div

400µs/div

OUT4 REGULATOR DROPOUT VOLTAGE

vs. LOAD CURRENT

100

THE SLOPE OF THIS LINE SHOWS THAT

90 THE DROPOUT RESISTANCE OF AN

80 AVERAGE PART AND BOARD

COMBINATION IS 181mΩ.

70

60

50

40

30

20

10

0

0

100 200 300 400 500

LOAD CURRENT (mA)

OUT5 REGULATOR LOAD REGULATION

3.310

3.308

3.306

VIN = 3.6V

3.304

3.302

VIN = 5.5V

3.300

0

30

60

90 120 150

LOAD CURRENT (mA)

OUT5 REGULATOR LINE REGULATION

3.4

RLOAD = 330Ω

3.0

2.6

2.2

1.8

OUT5 VOLTAGE vs. TEMPERATURE

3.310

3.309

VBAT = 4.0V

RLOAD = 330Ω

3.308

3.307

3.306

3.305

1.4

1

2

3

4

5

6

VIN_OUT5 (V)

3.304

-40 -15

10

35

60

85

AMBIENT TEMPERATURE (°C)

14 ______________________________________________________________________________________

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