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LM10500 データシート(PDF) 7 Page - Texas Instruments

部品番号 LM10500
部品情報  5A Step-Down Energy Management Unit (EMU) With PowerWise Adaptive Voltage Scaling (AVS)
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM10500 データシート(HTML) 7 Page - Texas Instruments

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LM10500
www.ti.com
SNVS630G – SEPTEMBER 2009 – REVISED MARCH 2013
General Electrical Characteristics
(1) (2) (continued)
Specifications with standard typeface are for TJ = 25 °C, and those in boldface type apply over the full Operating
Temperature Range (TJ = −40 °C to 125 °C). Unless otherwise specified, VPVIN = VAVIN = 12 V, VOUT = 1.2 V.
Symbol
Parameter
Remarks
Min
Typ
Max
Unit
Error Amplifier
Gm
VFB = 1.0 V, VCOMP = 0.5 V
2400
µA/V
Transconductance
Error Amplifier Voltage
AVOL
65
dB
Gain
Output voltage rising threshold, % of
VIH-OVP
OVP Tripping Threshold
103.5
109.5
115
VOUT
%
VHYST-OVP
OVP Hysteresis Window
% of VOUT
-4.3
AVIN UVLO Rising
VUVLO-HI-AVIN
2.84
2.93
2.987
V
Threshold
AVIN UVLO
VUVLO-LO-AVIN
2.66
2.73
2.83
V
FallingThreshold
AVIN UVLO Hysteresis
VUVLO-HYS-AVIN
195
mV
Window
Internal LDO1 Output
VVDD1
Measured At VDD1 Pin, 1 k
Ω Load
4.88
V
Voltage
Recommended Bypass
COUT-VDD1
Ceramic Capacitor
1
µF
Capacitance to VDD1 Pin
VDD1 Pin Short Circuit
IShort-VDD1
31
mA
Current
Internal LDO2 Output
VVDD2
Measured At VDD2 Pin, 1 k
Ω Load
2.47
V
Voltage
Recommended Bypass
COUT-VDD2
Ceramic Capacitor
100
nF
Capacitance to VDD2 Pin
VDD2 Pin Short Circuit
IShort-VDD2
47
mA
Current
CBOOT Diode Forward
Measured Between VDD1 and CBOOT
VFCBOOT-d
0.76
V
Voltage
@ 10 mA
ICBOOT
CBOOT Leakage Current
VCBOOT = 5.5 V, VEN = 0 V
0.65
µA
Measured From EN Rising Edge to
TStartup-Delay
Soft Start Delay Time
The Beginning of Internal Soft-Start
160
µs
Ramp
From 10% to 90% VFB, VFB = 0.8 V
1.9
3.4
5.3
Internal Soft-Start Ramping
TSoft-Start
ms
Time
From 10% to 90% VFB, VFB = 1.0 V
2.4
4.3
6.2
OSCILLATOR
Nominal Switching
FOSC-nom
RFRQ = 61.9 kΩ 0.025%
695
750
795
Frequency
Maximum Switching
FOSC-MAX
RFRQ = 28.4 kΩ
1500
kHz
Frequency
Minimum Switching
FOSC-MIN
RFRQ = 167.5 kΩ
300
Frequency
Switch Node Minimum OFF
fS = 1.5 MHz, VPVIN = 3.3 V, VFB = 1.0
TOFF-MIN
50
Time
V, Resistor Divider Ratio = 3.3
ns
Switch Node Minimum ON
fS = 1.5 MHz, VFB = 0.6 V, Resistor
TON-MIN
70
Time
Divider Ratio = 1
LOGIC
VIH-EN
EN Pin Rising Threshold
1.1
1.2
1.3
V
VHYST-EN
EN Pin Hysteresis Window
130
200
302
mV
IEN-IN
EN Pin Input Current
VEN = 12 V
18
23
µA
PWROK UV Rising
VIH-UV-PWROK
87.5
93
97.5
Threshold
% of VOUT
%
PWROK UV Hysteresis
VHYST-UV-PWROK
-4.2
Window
Copyright © 2009–2013, Texas Instruments Incorporated
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