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LP6301 数据表(PDF) 3 Page - Lowpower Semiconductor inc

部件名 LP6301
功能描述  1.5MHz, 1.5A Step-down Converter With Soft-Start
PDF  7 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP6301 数据表(HTML) 3 Page - Lowpower Semiconductor inc

  LP6301 Datasheet HTML 1Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 2Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 3Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 4Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 5Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 6Page - Lowpower Semiconductor inc LP6301 Datasheet HTML 7Page - Lowpower Semiconductor inc  
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Preliminary Datasheet
LP6301
LP6301 – Ver. 1.0 Datasheet
Sep.-2007
Absolute Maximum Ratings
Input Voltage to GND ------------------------------------------------------------------------------------------- 6V
SW to GND (VSW) ---------------------------------------------------------------------------- 0.3V to VIN +0.3V
FB to GND (VFB) ------------------------------------------------------------------------------ 0.3V to VIN +0.3V
EN
EN_BAT to GND (VEN) ------------------------------------------------------------------------0.3V to 6V
Operating Junction Temperature Range (TJ) ----------------------------------------------------40℃ to 150℃
Maximum Soldering Temperature (at leads, 1 0sec) ----------------------------------------------------- 260℃
Electrical Characteristics
(VIN =VEN,Typical values are TA=25℃ )
LP6301
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Step-Down Converter
VIN
Input Voltage
2.5
5.5
V
△VOUT
Output Voltage Line Regulation
ILOAD = 0
VINB = 2.5V to 5.5V
0.25
0.4
%/
v
△VFB
Reference Voltage
Line Regulation
VINB = 2.5V to 5.5V
0.25
0.4
%/
v
VOUT
Output Voltage Range
0.6
VINB
V
IQ
Quiescent Current
VFB1=VFB2=0V,VIN1/IN2=4.2V
270
350
µA
ISHDN
Shutdown Current
ENB = GND
1
µA
ILIM
P-Channel Current Limit
1.6
1.8
2
A
RDS(ON)H
High-Side Switch On Resistance
0.28
0.4
RDS(ON)L
Low-Side Switch On Resistance
0.3
0.4
ILXLEAK
LX Leakage Current
VEN1/EN2=0V,
VSW1/SW2=0 or 5V, VIN1/IN2=5V
1
µA
∆VLine-reg/∆VIN
Line Regulation
VINB = 2.8V to 5.5V
0.2
0.4
%/V
VFB
Feedback Threshold Voltage
Accuracy
VINB = 3.6V
0.588
0.6
0.612
V
IFB
FB Leakage Current
VOUTB = 1 .0V
30
nA
VFB1=VFB2=0.6V
1.2
1.5
1.8
FOSC
Oscillator Frequency
VFB1=VFB2=0V
0.7
MHz
TS
Startup Time
From Enable to Output Regulation
120
µs
TSD
Over-Temperature Shutdown
Threshold
150
℃
THYS
Over-Temperature Shutdown
Hysteresis
20
℃
VEN(L)
Enable Threshold Low
0.4
V
VEN(H)
Enable Threshold High
0.3
1.0
1.5
V
IEN
Input Low Current
VINB = VENB = 5.5V
-1
1
µA



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