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| 型号： | MAX17020ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/34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 = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
(Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3.3V preset output: REFIN2 = V CC (5V),
V IN = 12V, SKIP = V CC
3.267
3.30
3.333
OUT2 Output Voltage Accuracy
(Note 1)
V OUT2
1.05V preset output: REFIN2 = RTC (3.3V),
V IN = 12V, SKIP = V CC
1.040
1.050
1.060
V
Tracking output: V REFIN2 = 1.0V,
V IN = 12V, SKIP = V CC
0.995
1.00
1.005
OUT2 Voltage-Adjust Range
REFIN2 Voltage-Adjust Range
0
0
2
2
V
V
REFIN2 Input Bias Current
REFIN2 Dual-Mode Threshold
Voltage Levels
I REFIN2
V REFIN2 = 2.2V, T A = +25°C
V REFIN2 = 0, T A = +25°C
Low (REFIN2 = RTC)
High (REFIN2 = V CC )
-0.1
-0.5
2.2
V CC -
1.0V
+0.1
+0.1
3.0
V CC -
0.4V
μA
V
Either SMPS, SKIP = V CC , I LOAD = 0 to 5A
-0.1
Load Regulation Error
Line Regulation Error
Either SMPS, SKIP = REF, I LOAD = 0 to 5A
Either SMPS, SKIP = GND, I LOAD = 0 to 5A
Either SMPS, V IN = 6V to 24V
-1.7
-1.5
0.005
%
%/V
DH1 On-Time
t ON1
V IN = 12V,
V OUT1 = 5.0V
TON = GND or REF
(400kHz)
895
1052
1209
ns
(Note 2)
V IN = 12V,
TON = V CC (200kHz)
TON = GND (500kHz)
1895
475
2105
555
2315
635
DH2 On-Time
Minimum Off-Time
t ON2
t OFF(MIN)
V OUT2 = 3.3V
(Note 2)
(Note 2)
TON = REF or V CC
(300kHz)
833
925
250
1017
400
ns
ns
Soft-Start/Stop Slew Rate
Soft-Start/Stop Slew Rate
Dynamic REFIN2 Slew Rate
t SS
t SS
t DYN
Rising/falling edge on ON1 or ON2 (preset)
Rising/falling edge on ON2 (REFIN2 ADJ)
Rising edge on REFIN2
1
1
8
ms
mV/μs
mV/μs
Ultrasonic Operating Frequency f SW(USONIC) SKIP = open (REF)
20
27
kHz
SECFB Threshold Voltage
V SECFB
1.94
2.0
2.06
V
SECFB Input Bias Current
I SECFB
V SECFB = 2.2V, T A = +25°C
-0.2
+0.2
μA
LINEAR REGULATOR (LDO)
V IN = 24V, LDOREFIN = BYP = GND,
0mA < I LDO < 100mA
4.90
5.0
5.10
LDO Output-Voltage Accuracy
V LDO
V IN = 24V, LDOREFIN = V CC , BYP = GND,
0mA < I LDO < 100mA
3.23
3.3
3.37
V
V IN = 24V, BYP = GND, V LDOREFIN = 0.5V,
0mA < I LDO < 100mA
0.960
1.0
1.040
LDOREFIN Input Range
V LDOREFIN V LDO = 2 x V LDOREFIN
0.3
2.0
V
LDOREFIN Leakage Current
I LDOREFIN
V LDOREFIN = 0 or 2V, T A = +25°C
-0.5
+0.5
μA
LDOREFIN Dual-Mode
Threshold Voltage
LDOREFIN low threshold
LDOREFIN high threshold
0.1
V CC -
2V
0.15
V CC -
1.5V
0.20
V CC -
0.9V
V
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| 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) |
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