參數(shù)資料
型號： MC33680FTB
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： Single Output LDO, 400mA, Fixed(2.85V), Low Noise, Fast Transient Response 8-MSOP -40 to 85
中文描述： 1.15 A DUAL SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PQFP32
封裝： PLASTIC, LQFP-32
文件頁數(shù)： 5/16頁
文件大?。?/td> 340K
代理商： MC33680FTB
MC33680
http://onsemi.com
5
ABSOLUTE MAXIMUM RATINGS
(TA = 25
°
C, unless otherwise noted.)
Parameter
Symbol
Min
Max
Unit
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General Analog Pin Voltage
Pin VAUXSW to Pin VAUXEMR Voltage (Continuous)
Digital Pin Voltage
Vanalog
VAUXCE
–0.3
–0.3
–0.3
7.0
30
7.0
Vdc
Vdc
Vdc
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°
C unless
otherwise noted.)
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Operating Junction Temperature
150
°
C
Rating
Symbol
Min
Typ
Max
Unit
Operating Supply Voltage1
VBAT
Vmain
1.0
V
VMAIN output voltage
VMAIN output voltage range2
VMAIN output current3
VMAIN maximum switching frequency4
3.1
3.3
3.5
V
Vmain_range
I3.3_1.8
Freqmax_VM
ILIM_VM
VAUX_range
2.7
5.0
V
200
mA
100
kHz
VMAIN peak coil static current limit
0.85
1.0
1.15
A
VAUX output voltage range
5.0
25
V
VAUX maximum switching frequency
Freqmax_VL
ILIM_VL
Iqstandby
Vrefno_load
VLOBAT_L
VLOBAT_H
IchgPDELAY
VthPDELAY
120
kHz
VAUX peak coil static current limit
Quiescent Supply Current at Standby Mode5
1.0
A
35
60
μ
A
Reference Voltage @ no load
Battery Low Detect lower hysteresis threshold6
1.16
1.22
1.28
V
0.8
0.85
0.9
V
Battery Low Detect upper hysteresis threshold
1.05
1.1
1.15
V
PDELAY Pin output charging current
0.8
1.0
1.2
μ
A
PDELAY Pin voltage threshold
1.16
1.22
1.28
V
NOTE:
1. Output current capability is reduced with supply voltage due to decreased energy transfer. The supply voltage must not be higher than
VMAIN+0.6V to ensure boost operation. Max Start–up loading is typically 1V at 400
μ
A, 1.8V at 4.4 mA, and 2.2V at 88 mA.
NOTE:
2. Output voltage can be adjusted by external resistor to the VMAINFB pin.
NOTE:
3. At VBAT = 1.8V, output current capability increases with VBAT.
NOTE:
4. Only when current limit is not reached.
NOTE:
5. This is average current consumed by the IC from VDD, which is low–pass filtered from VMAIN, when only VMAIN is enabled and at no loading.
NOTE:
6. This is the minimum of ”LOWBATB” threshold for battery voltage, the threshold can be increased by external resistor divider from ”VBAT” to
”LOWBATSEN”.
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