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LM27262LQX データシート(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM27262LQX
部品情報  Intel CPU Core Voltage Regulator Controller for VRD10 Compatible PCs
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM27262LQX データシート(HTML) 8 Page - National Semiconductor (TI)

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Electrical Characteristics (Note 5),(Note 6) V
CC5V = 5V unless otherwise specified. (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Error Amp Input Offset
Voltage
VDAC = 1.3V
±1
mV
Error Amplifier Open
loop DC Gain
VFB = 1.3V, Comp Pin open
730
V/V
OSCILLATOR
Active Mode Switching
Frequency
235
300
345
kHz
Minimum On-Time
120
ns
Maximum Duty Cycle
75
%
SOFT START AND SOFT STOP (SOFTCAP), VIDSLEW
SOFTCAP Charge
Current
2.2
3.2
4.4
µA
SOFTCAP Discharge
Resistor
Measured from SOFTCAP pin to GND pin
50
k
DELAY FUNCTION
DELAY Source/Charge
Current
V
DELAY =0V
9
12
15
µA
DELAY Discharge
Current
V
DELAY =5V
1
mA
DELAY Threshold
Voltage
V
DELAY rising
1.4
V
PWRGOOD, UVP, OVP FAULT LATCHING THRESHOLD
VPGH%
PWRGD OVP
Threshold
Difference of VCORE pin above EA int.
reference voltage measured at VFB pin in test
mode; VID = 110110 = 1.3V, V
OS = 25mV
0.23
V
VPGL%
PWRGD UVP
Threshold
Percentage of VCORE pin below EA int.
reference voltage measured at VFB pin in test
mode; VID = 110110 = 1.3V, V
OS = 25mV
86
89
92
%
PWRGD Output Low
Voltage
PWRGD sinking 4mA (open drain)
0.15
V
PWRGD Leakage
Current
PWRGD pulled up to 5.5V
1
10
µA
VCORE OVP Latch
Threshold
Difference of VCORE pin above EA int.
reference voltage measured at VFB pin in test
mode; VID = 110110 = 1.3V, V
OS = 25mV
0.23
V
VCORE UVP Latch
Threshold
Percentage of VCORE pin below EA int.
reference voltage measured at VFB pin in test
mode; VID = 110110 = 1.3V, V
OS = 25mV
86
89
92
%
V
RON
Low Logic Level Input
Voltage
0.3
V
High Logic Level Input
Voltage
1.2
V
Low-to-High Voltage
Threshold
0.95
-
V
V
RON Threshold
Hysteresis
0.1
-
V
V
RON Leakage Current
V
VRON = 3.3V
5
20
µA
V
VRON = GND
50
nA
V
RON Assertion Delay
Delay of power on after VRON transition
(SOFTCAP = 0.01µF)
2
msec
www.national.com
8


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