參數(shù)資料
型號(hào): MAX1742EEE+T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches
中文描述: 4.7 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 0.150 INCH, 0.025 INCH PITCH, QSOP-16
文件頁(yè)數(shù): 11/16頁(yè)
文件大?。?/td> 597K
代理商: MAX1742EEE+T
MAX1742/MAX1842
1A/2.7A, 1MHz, Step-Down Regulators with
Synchronous Rectification and Internal Switches
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(VIN = VCC = 3.3V, FBSEL = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
Note 2: Recommended operating frequency, not production tested.
Note 3: Specifications from 0°C to -40°C are guaranteed by design, not production tested.
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
Input Voltage
VIN
3.0
5.5
V
VIN = 3V to 5.5V,
FBSEL = VCC
2.475
2.575
FBSEL = unconnected
1.485
1.545
FBSEL = REF
1.782
1.854
Preset Output Voltage
VOUT
ILOAD = 0 to 1A
for MAX1742,
ILOAD = 0 to 2.5A
for MAX1842,
VFB = VOUT
FBSEL = GND
1.078
1.122
V
Adjustable Output Voltage
Range
VIN = VCC = 3V to 5.5V, ILOAD = 0,
FBSEL = GND
VREF
VIN
V
Reference Voltage
VREF
1.078
1.122
V
VIN = 4.5V
200
PMOS Switch
On-Resistance
RON, P
ILX = 0.5A
VIN = 3V
250
VIN = 4.5V
150
NMOS Switch
On-Resistance
RON, N
ILX = 0.5A
VIN = 3V
200
m
MAX1742
1.2
1.8
Current-Limit Threshold
ILIMIT
MAX1842
2.9
4.3
MAX1742
0.05
0.55
Idle Mode Current Threshold
IIM
MAX1842
0.2
1.0
A
No-Load Supply Current
IIN + ICC
VFB = 1.2V
600
A
FB Input Bias Current
IFB
VFB = 1.2V
0
300
nA
Off-Time Default Period
tOFF
RTOFF = 110k
0.85
1.15
s
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