参数资料
型号: DS21348GN
厂商: DALLAS SEMICONDUCTOR
元件分类: Digital Transmission Interface
英文描述: DATACOM, PCM TRANSCEIVER, BGA49
封装: CABGA-49
文件页数: 5/44页
文件大小: 1078K
代理商: DS21348GN
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamic
Voltage Management for Mobile Applications
13
REG2 OUTPUT VOLTAGE
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
OUTPUT
VOLTAGE
(V)
MAX8660
toc16
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
1.65
1.70
1.75
1.80
1.85
1.90
1.95
10mA LOAD
800mA LOAD
REG2 LINE TRANSIENT
MAX8660 toc17
1V/div
100mV/div
VIN
V2
40
s/div
450mA LOAD,
V2 = 1.8V
5.0V
3.6V
Typical Operating Characteristics (continued)
(Circuit of Figure 3, VIN = 3.6V, TA = +25°C, unless otherwise noted.)
REG2 LOAD REGULATION
LOAD CURRENT (mA)
OUTPUT
VOLTAGE
(V)
MAX8660
toc18
0
200
400
600
800
1.75
1.77
1.79
1.81
1.83
1.85
VIN = 3.6V
-1.7%/A
FORCED-PWM
NORMAL
REG2 OUTPUT VOLTAGE vs. TEMPERATURE
TEMPERATURE (
°C)
OUTPUT
VOLTAGE
(V)
MAX8660
toc19
-40
-15
10
35
60
85
1.70
1.72
1.74
1.76
1.78
1.80
1.82
1.84
1.86
1.88
1.90
800mA LOAD
REG2 DROPOUT VOLTAGE vs. LOAD CURRENT
LOAD CURRENT (mA)
DROPOUT
VOLTAGE
(mV)
MAX8660
toc20
0
200
400
600
800
1000
0
50
100
150
200
250
300
THE NOMINAL ESR OF TOKO'S 2.0
H
DE2812C INDUCTOR IS 67m
. THE NOMINAL
p-CHANNEL RESISTANCE OF THE REG2 IS
180m
. THE SLOPE OF THIS LINE SHOWS
THAT THE TOTAL REG2 DROPOUT
RESISTANCE OF AN AVERAGE
PART, BOARD, INDUCTOR
COMBINATION IS 255m
.
REG2 LOAD TRANSIENT
MAX8660 toc21
200mA/div
100mV/div
V2
IV2
20
s/div
V2 = 1.8V
10mA
600mA
REG2 EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (mA)
EFFICIENCY
(%)
MAX8660
toc15
50
55
60
65
70
75
80
85
90
95
0.01
0.1
1
10
100
1000
VIN = 4.2V
VIN = 3.6V
L2 = 2.0
H
(TOKO DE2812C)
V2 = 1.8V
FORCED-PWM
NORMAL
REG2 HEAVY-LOAD SWITCHING WAVEFORMS
MAX8660 toc22
2mV/div
0A
2V/div
1A/div
V2
IL2
VLX2
400ns/div
800mA LOAD
REG2 LIGHT-LOAD SWITCHING WAVEFORMS
MAX8660 toc23
20mV/div
0A
2V/div
200mA/div
V2
IL2
VLX2
2
s/div
30mA LOAD
相关PDF资料
PDF描述
DS21348T DATACOM, PCM TRANSCEIVER, PQFP44
DS21348TN DATACOM, PCM TRANSCEIVER, PQFP44
DS21348G DATACOM, PCM TRANSCEIVER, BGA49
DS21Q348N DATACOM, PCM TRANSCEIVER, PBGA144
DS21Q348 DATACOM, PCM TRANSCEIVER, PBGA144
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