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參數(shù)資料
| 型號： | MAX1928EUB25 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low-Output-Voltage, 800mA, PWM Step-Down DC-DC Converters |
| 中文描述： | 0.8 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | MICRO MAX PACKAGE-10 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 303K |
| 代理商： | MAX1928EUB25 |
M
Low-Output-Voltage, 800mA, PWM Step-Down
DC-DC Converters
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
BATT
= 3.6V,
SHDN
= BATT, C
REF
= 0.1μF,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
N-Channel Synchronous Rectifier Turn-Off
Threshold
20
mA
LX Leakage Current
Maximum Duty Cycle
V
BATT
= 5.5V, LX = GND or BATT
-20
100
0.1
+20
μA
%
PWM = GND
PWM = BATT
0
Minimum Duty Cycle
15
1
160
%
Internal Oscillator Frequency
Thermal Shutdown Threshold
POK COMPARATOR
BATT Operating Voltage Range
Output Low Voltage
Output High Leakage Current
0.85
1.15
MHz
D eg ees
15
°
C hysteresis
I
POK
= 0.1 mA
V
FB
= 0.5V, I
POK
= 1mA
V
POK
= 5.5V
MAX1927R
MAX1928-15
MAX1928-18
MAX1928-25
1
5.5
0.1
1
0.700
1.395
1.674
2.325
V
V
μA
0.01
0.650
1.305
1.566
2.175
0.675
1.350
1.620
2.250
POK Threshold
V
Output Valid to POK Release Delay
POK transitions to high impedance 20ms
after V
FB
> V
POK
15
20
25
ms
LOGIC INPUTS (
SHDN
, PWM)
Logic Input High
Logic Input Low
Logic Input Current
2.6V < V
BATT
< 5.5 V
2.6V < V
BATT
< 5.5 V
V
BATT
= 5.5V
1.6
V
V
μA
0.6
1
0.1
ELECTRICAL CHARACTERISTICS
(V
BATT
= 3.6V,
SHDN
= BATT, C
REF
= 0.1μF,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
2.6
2.15
MAX
5.5
2.55
240
340
10
UNITS
V
V
μA
μA
μA
BATT Input Voltage
Undervoltage Lockout Threshold
Quiescent Current
Quiescent Current in Dropout
Shutdown Supply Current
REFERENCE AND ERROR AMP
V
BATT
rising or falling (35mV hysteresis)
No load, pulse skipping, PWM = GND
SHDN
= GND
MAX1927R
MAX1928-15
MAX1928-18
MAX1928-25
MAX1928
0.732
1.47
1.764
2.45
5
0.768
1.53
1.836
2.55
15
FB Voltage Accuracy
V
FB Input Current
μA
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1928EUB25+ | 功能描述:直流/直流開關轉換器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX1928EUB25+T | 功能描述:直流/直流開關轉換器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX1928EUB25-T | 功能描述:直流/直流開關轉換器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX1928EVKIT | 功能描述:直流/直流開關轉換器 Evaluation Kit for the MAX1927 MAX1928 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX192ACAP | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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