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LM2651 데이터시트(PDF) 4 Page - Texas Instruments

부품명 LM2651
상세설명  LM2651 1.5A High Efficiency Synchronous Switching Regulator
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홈페이지  http://www.ti.com
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LM2651 데이터시트(HTML) 4 Page - Texas Instruments

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LM2651
SNVS032D – FEBRUARY 2000 – REVISED APRIL 2013
www.ti.com
LM2651-ADJ System Parameters
(VOUT = 2.5V unless otherwise specified)
Symbol
Parameter
Conditions
Typical
Limit
Units
VFB
Feedback Voltage
ILOAD = 900 mA
1.238
V
1.200
V(min)
1.263
V(max)
VOUT
Output Voltage Line Regulation
VIN = 4V to 14V
0.2
%
ILOAD = 900 mA
VOUT
Output Voltage Load Regulation
ILOAD = 10 mA to 1.5A
1.3
%
VIN = 5V
VOUT
Output Voltage Load Regulation
ILOAD = 200 mA to 1.5A
0.3
%
VIN = 5V
VHYST
Sleep Mode Output Voltage
24
mV
Hysteresis
All Output Voltage Versions
Specifications in standard type face are for TJ = 25°C and those with boldface type apply over full operating junction
temperature range. VIN =10V unless otherwise specified.
Symbol
Parameter
Conditions
Typical
Limit
Units
IQ
Quiescent Current
1.6
mA
2.0
mA(max)
IQSD
Quiescent Current in Shutdown
Shutdown Pin Pulled Low
7
µA
Mode
12/20
µA(max)
RSW(ON)
High-Side or Low-Side Switch
ISWITCH = 1A
110
m
Ω
On Resistance (MOSFET On
Resistance + Bonding Wire
Resistance)
RDS(ON)
MOSFET On Resistance (High-
ISWITCH = 1A
75
m
Ω
Side or Low-Side)
130
m
Ω(max)
IL
Switch Leakage Current - High
130
nA
Side
Switch Leakage Current - Low
130
nA
Side
VBOOT
Bootstrap Regulator Voltage
IBOOT = 1 mA
6.75
V
6.45/6.40
V(min)
6.95/7.00
V(max)
GM
Error Amplifier
1250
µmho
Transconductance
VINUV
VIN Undervoltage Lockout
Rising Edge
3.8
3.95
V
Threshold Voltage
V(max)
VUV-HYST
Hysteresis for the Undervoltage
210
mV
Lockout
ICL
Switch Current Limit
VIN = 5V
2
A
1.55
A(min)
2.60
A(max)
ISM
Sleep Mode Threshold Current
VIN = 5V
100
mA
AV
Error Amplifier Voltage Gain
100
V/V
IEA_SOURCE
Error Amplifier Source Current
40
µA
25/15
µA(min)
IEA_SINK
Error Amplifier Sink Current
65
µA
30
µA(min)
VEAH
Error Amplifier Output Swing
2.70
V
Upper Limit
2.50/2.40
V(min)
VEAL
Error Amplifier Output Swing
1.25
V
Lower Limit
1.35/1.50
V(max)
VD
Body Diode Voltage
IDIODE = 1.5A
1
V
4
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Product Folder Links: LM2651


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