參數(shù)資料
型號： LM5115
廠商： National Semiconductor Corporation
英文描述： Secondary Side Post Regulator Controller
中文描述： 次級端后穩(wěn)壓控制器
文件頁數(shù)： 5/17頁
文件大小： 725K
代理商： LM5115
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VBIAS to GND
VCC to GND
HS to GND
OUT, CS to GND
All other inputs to GND
Storage Temperature Range
Junction Temperature
–0.3V to 32V
–0.3V to 9V
–1V to 80V
– 0.3V to 12V
0.3V to 7.0V
–55C to +150C
+150C
ESD Rating
HBM (Note 2)
2 kV
Operating Ratings
VBIAS supply voltage
VCC supply voltage
HS voltage
HB voltage
Operating Junction Temperature
5V to 30V
5V to 7.5V
0V to 75V
VCC + HS
–40C to +125C
Typical Operating Conditions
PARAMETER
MIN
4.5
4.5
0.1
0.1
0.047
50
1
0.75
TYP
MAX
30
7
UNITS
V
V
μF
μF
μF
μA
V
V
Supply Voltage, VBIAS
Supply Voltage, VCC
Supply voltage bypass, CVBIAS
Reference bypass capacitor, CVCC
HB-HS bootstrap capacitor
SYNC Current Range (VCC = 4.5V)
RAMP Saw Tooth Amplitude
VOUT regulation voltage
1
1
10
150
1.75
12
Electrical Characteristics
LO or HO.
Unless otherwise specified, T
J
= –40C to +125C, VBIAS = 12V, No Load on
SYMBOL
VBIAS SUPPLY
Ibias
VCC LOW DROPOUT BIAS REGULATOR
VccReg
VCC Regulation
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VBIAS Supply Current
F
SYNC
= 200kHz
4
mA
VCC open circuit. Outputs not
switching
(Note 4)
6.65
7
7.15
V
VCC Current Limit
VCC Under-voltage Lockout Voltage Positive going VCC
VCC Under-voltage Hysteresis
SOFT-START
SS Source Impedance
SS Discharge Impedance
ERROR AMPLIFIER and FEEDBACK REFERENCE
VREF
FB Reference Voltage
FB Input Bias Current
COMP Source Current
Open Loop Voltage Gain
GBW
Gain Bandwidth Product
Vio
Input Offset Voltage
COMP Offset
40
mA
V
V
4
4.5
0.3
0.2
0.25
43
60
100
77
k
Measured at FB pin
FB = 2V
0.737
0.75
0.2
300
60
4
0
2
0.763
0.5
V
μA
μA
dB
MHz
mV
V
-7
7
Threshold for V
HO
= high RAMP = CS
= VOUT = 0V
Threshold for V
HO
= high COMP =
1.5V, CS = VOUT = 0V
RAMP Offset
1.1
V
CURRENT SENSE AMPLIFIER
Current Sense Amplifier Gain
Output DC Offset
Amplifier Bandwidth
16
1.27
500
V/V
V
kHz
L
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相關代理商/技術參數(shù)
參數(shù)描述
LM5115A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down Tracking
LM5115AEVAL 功能描述:電源管理IC開發(fā)工具 LM5115A EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM5115AMT 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
LM5115AMT/NOPB 功能描述:DC/DC 開關控制器 Secondary Side Post Reg/Syn Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
LM5115AMTX 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
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