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参数资料
| 型号： | MAX8720EEI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/31页 |
| 文件大小： | 0K |
| 描述： | IC CNTRL VID STP DWN 28-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 应用： | 控制器，CPU GPU |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.28 V ~ 1.85 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-QSOP |
| 供应商设备封装： | 28-QSOP |
| 包装： | 管件 |
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Dynamically Adjustable 6-Bit VID
Step-Down Controller
Pin Description (continued)
PIN
28 QSOP
36 THIN
QFN
NAME
FUNCTION
Ground Remote-Sense Input. For nonvoltage-positioned circuits, connect GNDS to
ground directly at the load. GNDS internally connects to the integrator that fine tunes the
13
11
GNDS
output voltage. The output voltage rises by an amount of GNDS - AGND. For voltage-
positioned circuits, increase the output voltage by biasing GNDS with a resistor-divider
from REF to AGND.
Open-Drain Power-Good Output. PGOOD is normally high when the output is in
regulation. If V FB is not within a ±15% window of the DAC setting, PGOOD is asserted
14
12
PGOOD
low. During DAC code transitions, PGOOD is forced high for an additional 8 clocks after
the slew-rate controller finishes the transition. PGOOD is low during shutdown. PGOOD
upper threshold is blanked whenever the MAX8720 is in pulse-skipping mode ( SKIP =
GND or SUS = high).
15
16
17
—
16, 17
19
GND
DL
V DD
Analog and Power Ground. Also connects to the current-limit comparator.
Low-Side Gate-Driver Output. DL swings from PGND to V DD .
Supply Voltage Input for the DL Gate Driver. Connect to the system supply voltage
(+4.5V to +5.5V). Bypass V DD to power ground with a 1μF or greater ceramic capacitor.
Suspend-Mode Control Input. When SUS is high, the suspend-mode VID code, as
18
20
SUS
programmed by S0 and S1, is delivered to the DAC. Connect SUS to GND if the suspend-
mode multiplexer is not used. PGOOD upper threshold is blanked when SUS is high.
19
21
D0
DAC Code Inputs. D0 is the LSB and D5 is the MSB for the 6-bit DAC.
Pulse-Skipping Control Input. Connect SKIP to V CC for low-noise, forced-PWM mode, or
20
22
SKIP
connect SKIP to GND to enable pulse-skipping operation. PGOOD upper threshold is
blanked when SKIP = GND.
21
22
23
24
D5
D4
23
24
25
25
26
27
D3
D2
D1
DAC Code Inputs. D0 is the LSB and D5 is the MSB for the 6-bit DAC.
Boost Flying-Capacitor Connection. Connect to an external capacitor and diode as
26
29
BST
shown in Figure 1. An optional resistor in series with BST allows the DH pullup current to
be adjusted.
Inductor Connection. Connect LX to the switched side of the inductor. LX serves as the
27
31
LX
lower supply rail for the DH high-side gate driver. It also connects to the current-limit
comparator and the skip-mode zero-crossing comparator.
28
—
—
—
32
13
14,15
6, 18, 28,
30, 36
DH
AGND
PGND
N.C.
High-Side Gate-Driver Output. DH swings from LX to BST.
Analog Ground. Connect the backside pad to AGND.
Power Ground. Also connects to the current-limit comparator.
Not internally connected.
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8720EEI+ | 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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 |
| MAX8720EEI+T | 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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 |
| MAX8720EEI-T | 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 |
| MAX8720ETX | 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 |
| MAX8720ETX+ | 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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 |
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