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参数资料
| 型号： | MAX17030EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 24/39页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX17030 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | Quick-PWM™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 0 ~ 1.5 V |
| 输入电压： | 7 ~ 26 V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX17030 |
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1/2/3-Phase Quick-PWM
IMVP-6.5 VID Controllers
off-time expires. The on-time for each phase is based
on the input voltage to FB ratio (i.e., follows the master
on-time), but reduced by 33% in a 3-phase configura-
tion, and not reduced in a 2-phase configuration. This
maximizes the total inductor current slew rate.
After the phase-overlap mode ends, the controller auto-
matically begins with the next phase. For example, if
phase 2 provided the last on-time pulse before overlap
operation began, the controller starts switching with
phase 3 when overlap operation ends.
Nominal Output Voltage Selection
The nominal no-load output voltage (V TARGET ) is
defined by the selected voltage reference (VID DAC)
plus the remote ground-sense adjustment (V GNDS ) as
defined in the following equation:
V TARGET = V FB = V DAC + V GNDS
where V DAC is the selected VID voltage. On startup, the
MAX17030/MAX17036 slew the target voltage from
ground to the preset boot voltage. Table 3 is the operating
mode truth table.
Table 3. Operating Mode Truth Table
DAC Inputs (D0–D6)
The digital-to-analog converter (DAC) programs the out-
put voltage using the D0–D6 inputs. D0–D6 are low-volt-
age (1.0V) logic inputs, designed to interface directly with
the CPU. Do not leave D0–D6 unconnected. Changing
D0–D6 initiates a transition to a new output-voltage level.
Change D0–D6 together, avoiding greater than 20ns
skew between bits. Otherwise, incorrect DAC readings
might cause a partial transition to the wrong voltage level
followed by the intended transition to the correct voltage
level, lengthening the overall transition time. The available
DAC codes and resulting output voltages are compatible
with the IMVP-6.5 (Table 4) specifications.
OFF Code
VID = 1111111 is defined as an OFF code. When the
OFF code is set, the MAX17030/MAX17036 go through
the same shutdown sequence as though SHDN has
been pulled low—output discharged to zero, CLKEN
high, and PWRGD low. Only the IC supply currents
remain at the operating levels rather than the shutdown
level. When exiting from the OFF code, the MAX17030/
MAX17036 go through the boot sequence, similar to the
sequence when SHDN is first pulled high.
SHDN
GND
INPUTS
DPRSLPVR
X
PSI
X
PHASE
OPERATION*
Disabled
OPERATING MODE
Low-Power Shutdown Mode. DL1 and DL2 forced low, and the
controller is disabled. The supply current drops to 1μA (max).
Startup/Boot. When SHDN is pulled high, the MAX17030/
Rising
X
X
Multiphase Pulse Skipping MAX17036 begin the startup sequence. Once the REF is above 1.84V,
1/4 R TIME Slew Rate the controller enables the PWM controller and ramps the output
voltage up to the boot voltage. See Figure 9.
High
Low
High
Multiphase Forced-PWM
Nominal R TIME Slew Rate
Full Power. The no-load output voltage is determined by the selected
VID DAC code (D0–D6, Table 4).
Intermediate Power. The no-load output voltage is determined by the
High
Low
Low
(N-1)-Phase Forced-PWM
Nominal R TIME Slew Rate
selected VID DAC code (D0–D6, Table 4). When PSI is pulled low, the
MAX17030/MAX17036 immediately disable phase 3, PWM3 is three-
state, and DRSKP is low.
Deeper Sleep Mode. The no-load output voltage is determined by the
selected VID DAC code (D0–D6, Table 4). When DPRSLPVR is pulled
High
High
X
1-Phase Pulse Skipping
Nominal R TIME Slew Rate
high, the MAX17030/MAX17036 immediately enter 1-phase pulse-
skipping operation allowing automatic PWM/PFM switchover under
light loads. The PWRGD and CLKEN upper thresholds are blanked.
DH2 and DL2 are pulled low, PWM3 is three-state and DRSKP is low.
*Multiphase operation = All enabled phases active.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17030EVKIT+ | 功能描述:电源管理IC开发工具 MAX17030 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX17030GTL+ | 功能描述:电压模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX17030GTL+T | 功能描述:电压模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX17031ETG+ | 功能描述:电压模式 PWM 控制器 Dual PWM Step-Down Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX17031ETG+T | 功能描述:电压模式 PWM 控制器 Dual PWM Step-Down Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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