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| 型号： | MAX1816ETM |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Replaced by TMS320VC5506 : Digital Signal Processors 144-LQFP |
| 中文描述： | DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC48 |
| 封装： | 7 X 7 MM, 0.80 MM HEIGHT, THIN, QFN-48 |
| 文件页数： | 11/49页 |
| 文件大小： | 983K |
| 代理商： | MAX1816ETM |
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M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
______________________________________________________________________________________
11
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
OUT1
= 1.20V, V
OUT2
= 2.50V, V
CC
= V
DD
= 5.0V, V
SKP1/
SDN
= V
SKP2/
SDN
= V
LIN/
SDN
= 5.0V,
T
A
= -40
°
C to +100
°
C
, unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SKP1/
SDN
, SKP2/
SDN
Skip
Level
SKP1/
SDN
, SKP2/
SDN
PWM
Level
SKP1/
SDN
, SKP2/
SDN
Shutdown
Level
SKP1/
SDN
, SKP2/
SDN
logic input high level
2.8
V
SKP1/
SDN
, SKP2/
SDN
logic input float level
1.4
2.2
V
SKP1/
SDN
, SKP2/
SDN
logic input low level
0.4
V
PGOOD Lower Trip Threshold
M easur ed at FBS OU T2, and FB2 w h r esp ect to unl oad ed
outp ut vol ag e, fal ng ed g e, typ cal hyster esi s = 1%
-12.5
-7.5
%
LINGOOD Lower Trip Threshold
and LINFB Undervoltage
Protection Threshold
Measured at LINFB with respect to unloaded output
voltage, falling edge (Note 5)
-12.5
-7.5
%
PGOOD Upper Trip Threshold
Measured at FBS, OUT_, FB2 with respect to unloaded
output voltage, rising edge, typical hysteresis = 1%
7.5
12.5
%
LINGOOD Upper Trip Threshold
and LINFB Overvoltage Trip
Threshold
LINGOOD Turn-On Delay
Open-Drain Output Low Voltage
(PGOOD, LINGOOD)
OFS Positive Offset when
Programmed to Zero
Measured at LINFB with respect to unloaded output
voltage, rising edge (Note 5)
7.5
12.5
%
LINFB forced 2% above LINGOOD lower trip threshold
1
ms
I
SINK
= 3mA
0.4
V
Deviation in the output voltage when tested with OFS_
connected to REF
V
OUT
/
V
OFS
,
V
OFS
= (0.8V - 0V)
V
OUT
/
V
OFS
,
V
OFS
= (2.0V - 1.2V)
2
mV
0.119
0.119
0.131
0.131
OFS Gain
V/V
Note 1:
DC output accuracy specifications for BUCK2 refer to the trip level of the error amp. The output voltage has a DC regulation
higher than the trip level by 50% of the ripple. In SKIP mode, the output rises by approximately 1.5% when transitioning from
continuous conduction to no load.
Note 2:
On-time and minimum off-time specifications for both BUCK1 and BUCK2 are measured from 50% to 50% at the DH_ pin
with LX_ forced to zero, BST_ forced to 5V, and a 500pF capacitor from DH_ to LX_ to simulate external MOSFET gate
capacitance. Actual in-circuit times can be different due to MOSFET switching speeds.
Note 3:
This does not include the time for REF to start up if required.
Note 4:
Production testing limitations due to package handling require relaxed maximum on-resistance specifications for the thin
QFN package.
Note 5:
The LINGOOD signal is latched low under a fault condition of LINFB dropping below 90% or rising above 110% of the nomi-
nal set point. The LINGOOD signal does not go high again until the fault latch is reset.
Note 6:
Specifications from -40
°
C to +100
°
C are guaranteed by design, not production tested.
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相关代理商/技术参数 |
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|---|---|
| MAX1816ETM+ | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1816ETM+T | 功能描述:DC/DC 开关控制器 NULL RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1816ETM-T | 功能描述:DC/DC 开关控制器 NULL RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1816XR31+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX1817EUB | 功能描述:直流/直流开关转换器 Dual-Output Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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