MAX8662 查看數據表（PDF） - Maxim Integrated
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MAX8662 Datasheet PDF : 34 Pages
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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.)
OUT7 REGULATOR LOAD-
OUT7 REGULATOR LINE-
TRANSIENT RESPONSE
TRANSIENT RESPONSE
MAX8662/63 toc68
MAX8662/63 toc69
IOUT7
100mA/div
5V
VIN67 3.6V
2V/div
VOUT7
AC-COUPLED
50mV/div
VBAT = 4.0V
IOUT7 = 10mA TO 150mA TO 10mA
40µs/div
VOUT7
AC-COUPLED
20mV/div
IOUT7 = 10mA
100µs/div
OUT7 ENABLE AND DISABLE RESPONSE
MAX8662 toc70
VCEN = VL
ROUT7 = 33I
VOUT7
2V/div
IDC
200mA /div
OUT7 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 391mΩ.
50
40
30
VL REGULATOR LOAD REGULATION
3.31
3.30
3.29
3.28
VIN = 5.5V
3.27
20
VEN7
2V/div
10
3.26
VIN = 4.35V
3.25
0
400µs/div
0
VL REGULATOR LINE REGULATION
3.50
RLOAD = 3.3kΩ
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
3
4
5
6
7
8
VIN (V)
25 50 75 100 125 150
IOUT (mA)
3.24
0 1 2 3 4 5 6 7 8 9 10
LOAD CURRENT (mA)
OPEN-DRAIN OUTPUT VOLTAGE LOW
vs. SINK CURRENT
0.5
THE SLOPE OF THIS LINE SHOWS THAT
THE PULLDOWN RESISTANCE IS 11Ω.
0.4 VIN = 5.0V
VBAT = 4.0V
0.3
0.2
0.1
0
0
PULLDOWN DEVICE HAS A
20mA STEADY-STATE RATING
5 10 15 20 25 30 35 40
ISINK (mA)
______________________________________________________________________________________ 17
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