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| 型号： | MAX17020ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/34页 |
| 文件大小： | 0K |
| 描述： | IC CTLR PWM DUAL STEP DN 32-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 系列： | Quick-PWM™ |
| 应用： | 电源 |
| 电流 - 电源： | 1mA |
| 电源电压： | 6 V ~ 24 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 管件 |
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Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V IN = 12V, V DD = V CC = V SECFB = 5V, V REFIN2 = 1.0V, BYP =
LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V CC , T A = -40°C to +85°C , unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT2 Undervoltage-Protection
Trip Threshold
PGOOD2 Lower Trip Threshold
PGOOD2 Output-Low Voltage
Preset mode: with respect to error-comparator
V UVP(OUT2) threshold
Tracking mode: with respect to REFIN2 voltage
Preset mode: with respect to error-comparator
threshold, falling edge, hysteresis = 1%
Tracking mode: with respect to REFIN2
voltage, falling edge, hysteresis = 12mV
V OUT2 = V REFIN2 - 150mV (PGOOD2 low
impedance), I SINK = 4mA
63
-230
-20
-185
77
-370
-12
-115
0.4
%
mV
%
mV
V
CURRENT LIMIT
ILIM_ Adjustment Range
V ILIM
0.2
2.0
V
Valley Current-Limit Threshold
(Adjustable)
V VALLEY
V AGND - V LX _
R ILIM _ = 100k Ω
R ILIM _ = 200k Ω
R ILIM _ = 400k Ω
40
85
164
60
115
236
mV
GATE DRIVERS
DH_ Gate Driver On-Resistance
DL_ Gate Driver On-Resistance
R DH
R DL
BST1 - LX1 and BST2 - LX2 forced to 5V
DL1, DL2; high state
DL1, DL2; low state
3.5
4.5
1.5
Ω
Ω
INPUTS AND OUTPUTS
High
V CC -
0.4V
TON Input Logic Levels
REF or open
1.6
3.0
V
Low
0.4
SKIP Input Logic Levels
High (forced-PWM)
Open (ultrasonic)
V CC -
0.4V
1.6
3.0
V
Low (skip)
0.4
ON_ Input Logic Levels
ONLDO Input Logic Levels
High (SMPS on)
Low (SMPS off)
High (LDO on)
Low (LDO off)
2.4
2.4
0.8
0.8
V
V
Note 1: DC output accuracy specifications refer to the threshold of the error comparator. When the inductor is in continuous conduc-
tion, the MAX17020 regulates the valley of the output ripple, so the actual DC output voltage is higher than the trip level by
50% of the output ripple voltage. In discontinuous conduction (I OUT < I LOAD(SKIP) ), the output voltage has a DC regulation
level higher than the error-comparator threshold by approximately 1.5% due to slope compensation.
Note 2: On-time and off-time specifications are measured from 50% point to 50% point at the DH pin with LX = PGND, VBST = 5V,
and a 500pF capacitor from DH to LX to simulate external MOSFET gate capacitance. Actual in-circuit times might be differ-
ent due to MOSFET switching speeds.
Note 3: Limits are 100% production tested at T A = +25°C. Maximum and minimum limits over temperature are guaranteed by design
and characterization.
Note 4: Specifications increased by 1 Ω to account for test measurement error.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17020ETJ+ | 功能描述:电压模式 PWM 控制器 Quick-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 |
| MAX17020ETJ+T | 功能描述:电压模式 PWM 控制器 Quick-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 |
| MAX17020EVKIT+ | 制造商:Maxim Integrated Products 功能描述:SINGLE QUICK-PWM STEP-DOWN CONTROLL - Boxed Product (Development Kits) |
| MAX17021EVKIT+ | 功能描述:电源管理IC开发工具 MAX17021 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 |
| MAX17021GTL+ | 功能描述:电压模式 PWM 控制器 Dual-Phase, Quick-Pw M Controllers For Im 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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