參數(shù)資料
型號： MAX1687ESA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM
中文描述： 0.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封裝： SOP-8
文件頁數(shù)： 3/12頁
文件大小： 210K
代理商： MAX1687ESA
M
S tep-Up DC-DC Converters with
Prec ise, Adaptive Current Limit for GS M
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(V
IN
= V
ON
= +3V, V
LIM
= 1V (MAX1687), V
CHG
= 1V (MAX1688), V
FB
= 1.5V, V
OUT
= 6V,
T
A
= -40°C to +85°C
, unless otherwise noted.)
(Note 1)
Note 1:
Specifications to -40°C are guaranteed by design, not production tested.
V
LIM
= V
CHG
= 1V
V
LIM
= V
CHG
= 0.65V
I
IN
IN rising, 1% hysteresis
V
FB
= 1.125V, V
OUT
= 3V (MAX1688)
V
LIM
= V
CHG
= 1V
FB rising, 2% hysteresis
I
REF
= 0 to 10μA
V
FB
= 1.5V
Shutdown V
IN
= 4.2V, LX2 connected to LX1,
V
OUT
= 0, ON = GND
CONDITIONS
mA
V
145
240
0.18
0.6
I
RIPPLE
R
SENSE
V
IL
Ripple Current
Sense Resistor
ON Input Low Voltage
A
0.44
0.57
I
PEAK
0.73
0.90
Peak Current
V
V
2.35
V
REF
2.65
6
V
2.7
6
Input Voltage Range
Input Undervoltage Lockout
Output Voltage Range
mmho
0.16
0.24
gm
FB
FB Transconductance
V
1.20
1.30
FB Set Voltage
V
1.212
1.288
V
REF
Reference Voltage
ms
0.6
2
T
DELAY
Shutdown Delay
mA
5
I
SHDN
Input Supply Current
μA
10
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
IN
= 4V, V
FB
= 0, V
OUT
= 0
V
IN
= 2.7V
V
IN
= 2.7V
70
Precharge On-Resistance
0.7
0.8
N-Channel On-Resistance
P-Channel On-Resistance
Typic al Operating Charac teristic s
(V
IN
= +3.3V, V
OUT
= 5V, V
LIM
= 1V, Figures 6b and 7, T
A
= +25°C, unless otherwise noted.)
60
70
65
80
75
85
95
90
0
150
200
50
100
LOAD CURRENT (mA)
250
300
350
EFFICIENCY vs. DC LOAD CURRENT
(V
OUT
= 5.5V)
M
E
V
IN
= 5V
V
IN
= 3.3V
V
IN
= 2.7V
V
IN
= 6V
60
65
70
75
80
85
90
95
0
1500
500
1000
LOAD CURRENT (mA)
2000
2500
3000
EFFICIENCY vs. GSM BURST LOAD
(V
OUT
= 5.5V)
M
E
V
IN
= 5V
V
IN
= 3.3V
V
IN
= 2.7V
V
IN
= 6V
60
70
65
80
75
95
90
85
100
0
100
LOAD CURRENT (mA)
50
150
200
250
300
350
EFFICIENCY vs. LOAD CURRENT
(V
IN
= 2.7V, V
OUT
= 3.3V)
M
E
V
IN
= 2.7V
V
IN
= 6V
V
IN
= 4.2V
V
V
IH
ON Input High Voltage
1.8
1.5
相關(guān)PDF資料
PDF描述
MAX1688ESA Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1687ESA+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 StepUp w/Prec Adapt Crnt Limit for GSM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
MAX1687ESA+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 StepUp w/Prec Adapt Crnt Limit for GSM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
MAX1687ESA-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 StepUp w/Prec Adapt Crnt Limit for GSM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
MAX1687EUE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 StepUp w/Prec Adapt Crnt Limit for GSM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
MAX1687EUE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 StepUp w/Prec Adapt Crnt Limit for GSM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
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