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LM2651MTC-2.5 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM2651MTC-2.5
Giải thích chi tiết về linh kiện  1.5A High Efficiency Synchronous Switching Regulator
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2651MTC-2.5 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI)

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LM2651-3.3 System Parameters (Continued)
Symbol
Parameter
Conditions
Typical
Limit
Units
V
HYST
Sleep Mode Output Voltage
Hysteresis
60
mV
LM2651-ADJ System Parameters
(V
OUT = 2.5V unless otherwise specified)
Symbol
Parameter
Conditions
Typical
Limit
Units
V
FB
Feedback Voltage
I
LOAD = 900 mA
1.238
1.200
1.263
V
V(min)
V(max)
V
OUT
Output Voltage Line
Regulation
V
IN = 4V to 14V
I
LOAD = 900 mA
0.2
%
V
OUT
Output Voltage Load
Regulation
I
LOAD = 10 mA to 1.5A
V
IN = 5V
1.3
%
V
OUT
Output Voltage Load
Regulation
I
LOAD = 200 mA to 1.5A
V
IN = 5V
0.3
%
V
HYST
Sleep Mode Output Voltage
Hysteresis
24
mV
All Output Voltage Versions
Specifications in standard type face are for T
J = 25˚C and those with boldface type apply over full operating junction tem-
perature range. V
IN =10V unless otherwise specified.
Symbol
Parameter
Conditions
Typical
Limit
Units
I
Q
Quiescent Current
1.6
2.0
mA
mA(max)
I
QSD
Quiescent Current in
Shutdown Mode
Shutdown Pin Pulled Low
7
12/20
µA
µA(max)
R
SW(ON)
High-Side or Low-Side
Switch On Resistance
(MOSFET On Resistance +
Bonding Wire Resistance)
I
SWITCH = 1A
110
m
R
DS(ON)
MOSFET On Resistance
(High-Side or Low-Side)
I
SWITCH = 1A
75
130
m
m
Ω(max)
I
L
Switch Leakage Current -
High Side
130
nA
Switch Leakage Current -
Low Side
130
nA
V
BOOT
Bootstrap Regulator Voltage
I
BOOT = 1 mA
6.75
6.45/6.40
6.95/7.00
V
V(min)
V(max)
G
M
Error Amplifier
Transconductance
1250
µmho
V
INUV
V
IN Undervoltage Lockout
Threshold Voltage
Rising Edge
3.8
3.95
V
V(max)
V
UV-HYST
Hysteresis for the
Undervoltage Lockout
210
mV
I
CL
Switch Current Limit
V
IN = 5V
2
1.55
2.60
A
A(min)
A(max)
I
SM
Sleep Mode Threshold
Current
V
IN = 5V
100
mA
A
V
Error Amplifier Voltage Gain
100
V/V
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