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參數(shù)資料
| 型號(hào)： | MAX8539 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual-Synchronous Buck Controllers for Point-of-Load. Tracking. and DDR Memory Power Supplies |
| 中文描述： | 雙路同步buck控制器，用于負(fù)載點(diǎn)、跟蹤和DDR存儲(chǔ)器供電 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大小： | 296K |
| 代理商： | MAX8539 |
M
PWM Buc k Converters with Bypass FET
for N-CDMA/W-CDMA Handsets
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
BATT
= V
BATTP
= 3.6V,
SHDN
=
SKIP
= BATT, V
REFIN
= 1.932V (MAX8500, MAX8502), V
REFIN
= 1.70V (MAX8501, MAX8503), C
REF
= 0.22μF, T
A
= -40
°
C to +85
°
C, unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.26
0.33
0.25
0.3
MAX
0.60
UNITS
I
LX
= 180mA, V
BATT
= 3.6V
I
LX
= 180mA, V
BATT
= 2.6V
I
OUT
= 180mA, V
BATT
= 3.6V
I
OUT
= 180mA, V
BATT
= 2.6V
N-Channel On-Resistance
N
RDS
0.60
LDO/Bypass P-Channel
On-Resistance
P-Channel Current-Limit
Threshold
I
LIMP
1.30
1.45
1.60
A
SKIP
= BATT
SKIP
= GND
-0.80
30
-0.60
47
-0.40
65
A
N-Channel Current-Limit
Threshold
I
LIMN
mA
P-Channel Pulse-Skipping
Current Threshold
I
SKIP
SKIP
= GND
118
148
178
mA
LDO/Bypass P-Channel
Current-Limit Threshold
0.70
1.00
1.55
A
LX RMS Current
LX Leakage Current
Maximum Duty Cycle
(Note 3)
V
BATT
= V
BATTP
= 5.5V, V
LX
= 0 to 5.5V
1.5
+20
A
μA
%
-20
100
+0.1
SKIP
= GND
SKIP
= BATT
0
13
1.1
2.4
200
175
350
Minimum Duty Cycle
10
1.0
2.3
142
125
250
0.38
1.0
%
COMP Clamp Low Voltage
COMP Clamp High Voltage
0.7
2.0
85
75
150
V
V
MAX8500, MAX8501
MAX8502, MAX8503
MAX8504
Transconductance
g
m
μS
Current-Sense Transresistance
Internal Oscillator Frequency
LOGIC INPUTS (
SHDN
, HP,
SKIP
)
Logic Input High
Logic Input Low
Logic Input Current
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
R
CS
f
OSC
V/A
MHz
0.8
1.2
V
IH
V
IL
1.6
V
V
μA
0.4
1.0
0.1
160
15
°
C
°
C
Note 2:
Specifications to -40
°
C are guaranteed by design and not subject to production test.
Note 3:
Guaranteed by design, not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8539EEI | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX8539EEI+ | 功能描述:DC/DC 開關(guān)控制器 Dual-Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX8539EEI+T | 功能描述:DC/DC 開關(guān)控制器 Dual-Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX8539EEI-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX853C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
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