參數(shù)資料
型號： MAX1927REUB
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)： 2/12頁
文件大小： 303K
代理商： MAX1927REUB
M
Low-Output-Voltage, 800mA, PWM Step-Down
DC-DC Converters
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
BATT, PWM, POK, COMP,
SHDN
to GND ...............-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
LX, REF, FB to GND ................................-0.3V to (V
BATT
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
10-Pin μMAX (derate 5.6mW/°C above +70°C)...........444mW
ELECTRICAL CHARACTERISTICS
(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.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
CONDITIONS
MIN
2.6
2.15
TYP
MAX
5.5
2.55
240
UNITS
V
V
μA
mA
μA
μA
BATT Input Voltage
Undervoltage Lockout Threshold
V
BATT
rising or falling (35mV hysteresis)
No load, pulse skipping, PWM = GND
1MHz switching
2.35
140
2
190
0.1
Quiescent Current
Quiescent Current in Dropout
Shutdown Supply Current
REFERENCE AND ERROR AMP
340
10
SHDN
= GND
MAX1927R
MAX1928-15
MAX1928-18
MAX1928-25
MAX1928
MAX1927R
MAX1927R
MAX1928-15
MAX1928-18
MAX1928-25
0.738
1.477
1.773
2.462
5
0.75
1.5
1.8
2.5
10
10
250
210
175
125
1.25
0.5
0.762
1.523
1.827
2.538
15
150
FB Voltage Accuracy
V
μA
nA
FB Input Current
Transconductance (g
m
)
μS
Reference Voltage Accuracy
Reference Supply Rejection
PWM CONTROLLER
1.231
1.269
2
V
2.6V < V
BATT
< 5.5V
mV
V
BATT
= 3.6V
V
BATT
= 2.6V
V
BATT
= 3.6V
V
BATT
= 2.6V
0.25
0.3
0.17
0.2
0.48
1.3
0.13
-0.55
0.4
0.5
0.3
0.35
P-Channel On-Resistance
N-Channel
On-Resistance
Current-Sense Transresistance (R
CS
)
P-Channel Current-Limit Threshold
P-Channel Pulse-Skipping Current Threshold
N-Channel Negative Current-Limit Threshold
V/A
A
A
A
1.1
0.11
1.6
0.15
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相關代理商/技術參數(shù)
參數(shù)描述
MAX1927REUB+ 功能描述:直流/直流開關轉(zhuǎn)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
MAX1927REUB+T 功能描述:直流/直流開關轉(zhuǎn)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
MAX1927REUB-G05 功能描述:直流/直流開關轉(zhuǎn)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
MAX1927REUB-T 功能描述:直流/直流開關轉(zhuǎn)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
MAX1927REUB-TG05 功能描述:直流/直流開關轉(zhuǎn)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
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