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參數(shù)資料
| 型號： | MAX8554EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications |
| 中文描述： | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 483K |
| 代理商： | MAX8554EEE |
M
4.5V to 28V Input, Synchronous PWM Buck Controllers
for DDR Termination and Point-of-Load Applications
_______________________________________________________________________________________
7
ELECTRICAL CHARACTERISTICS (continued)
(V
V+
= V
HSD
= +12V, V
EN/HSD
= V
REFIN
= +2.5V, V
EN
= +5V, C
VL
= 4.7μF, C
VTTR
= 1μF, C
REF
= 0.22μF, V
FSEL
= 0, ILIM = VL, PGND
= LX = POK = GND, BST = VL,
T
A
= -40
°
C to +85
°
C
, unless otherwise specified.) (Note 3)
PARAMETER
CONDITIONS
DRIVER
DH Gate-Driver On-Resistance
V
BST
- V
LX
= +5V
DL Gate-Driver On-Resistance
(Source)
MIN
MAX
UNITS
2.5
DL high state
3.0
DL Gate-Driver On-Resistance
(Sink)
DL low state
1.25
FSEL LOGIC
Logic Input Current
Logic Low (GND)
Logic REF Level
Logic Float Level
Logic VL Level
EN/HSD OR EN LOGIC
EN/HSD or EN Shutdown Current
Logic High
Logic Low
POWER-OK OUTPUT
Upper VTT, and VTTR Threshold
Lower VTT, and VTTR Threshold
Upper Threshold
Lower Threshold
POK Output Low Level
POK Output High Leakage
-3
+3
0.5
2.35
3.85
μA
V
V
V
V
FSEL = REF
FSEL unconnected
FSEL = VL
1.65
3.15
V
VL
- 0.4
Max I
EN/HSD
for V
EN/HSD
< +0.8V or V
EN
< +0.8V
V
VL
= V
V+
= +4.5 to +5.5V, 100mV hysteresis
V
VL
= V
V+
= +4.5 to +5.5V
0.5
1.5
3.0
μA
V
V
0.8
MAX8553
MAX8553
MAX8554
MAX8554
I
SINK
= 2mA
V
POK
= +5V
55
43
57
45
% V
RE FIN
% V
RE FIN
V
V
V
μA
0.646
0.504
0.698
0.552
0.4
5
Note 1:
Consult factory for applications that require higher than 3.5V output.
Note 2:
On-time and off-time specifications are measured from 50% point to 50% point at the DH pin with LX forced to 0V, BST
forced to 5V, and a 250pF capacitor connected from DH to LX. Actual in-circuit times may differ due to MOSFET switching
speeds.
Note 3:
Specifications to -40
°
C are guaranteed by design and are not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8554EEE+ | 功能描述:電流型 PWM 控制器 4.5-28V Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX8554EEE+T | 功能描述:電流型 PWM 控制器 4.5-28V Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX8554EEE-T | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX8554EVKIT | 功能描述:電流型 PWM 控制器 Evaluation Kit for the MAX8553 MAX8554 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX8555AETB | 制造商:Maxim Integrated Products 功能描述:LOW-COST, HIGH-RELIABILITY, 0.5V TO 3.3V O-RI - Rail/Tube |
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