MAX8662 查看數據表（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.)

OUT2 REGULATOR LINE REGULATION

1.310

RLOAD = 130Ω

1.308

1.3050

OUT2 VOLTAGE vs. TEMPERATURE

VBAT = 4.0V

RLOAD = 130Ω

1.3045

1.306

1.304

1.3040

1.302

1.3035

1.300

2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5

VSYS (V)

VOUT2

AC-COUPLED

OUT2 REGULATOR LIGHT-LOAD

SWITCHING WAVEFORMS

MAX8662/63 toc34

VBAT = 4.0V

IOUT2 = 10mA

PWM = 0

20mV/div

VLX

2V/div

1.3030

-40 -15

10

35

60

85

AMBIENT TEMPERATURE (°C)

VOUT2

AC-COUPLED

OUT2 REGULATOR HEAVY-LOAD

SWITCHING WAVEFORMS

MAX8662/63 toc35

10mV/div

VL

2V/div

IL

IL

100mA/div

10µs/div

500mA/div

1µs/div

VBAT = 4.0V

IOUT2 = 900mA

OUT2 REGULATOR LOAD-

TRANSIENT RESPONSE

MAX8662/63 toc36

VLX

5V/div

IOUT2

1A/div

VSYS

VOUT1

OUT2 REGULATOR LINE-

TRANSIENT RESPONSE

MAX8662/63 toc37

5V

4V IOUT1 = 10mA

PWM = 0

1V/div

20mV/div

IL

500mA/div

VLX

5V/div

VOUT2

AC-COUPLED

VBAT = 4.0V

IOUT2 = 10mA TO 900mA TO 10mA

40µs/div

50mV/div

PWM = 0

IL

200mA/div

100µs/div

12 ______________________________________________________________________________________

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