LM10500_15 Datasheet, PDF (7/40 Pages) Texas Instruments – 5A Step-Down Energy Management Unit (EMU) With PowerWise Adaptive Voltage Scaling (AVS)

LM10500
www.ti.com
SNVS630G – SEPTEMBER 2009 – REVISED MARCH 2013
General Electrical Characteristics ^{(1) (2)} (continued)
Specifications with standard typeface are for T_J = 25 °C, and those in boldface type apply over the full Operating
Temperature Range (T_J = −40 °C to 125 °C). Unless otherwise specified, V_PVIN = V_AVIN = 12 V, V_OUT = 1.2 V.
Symbol
Parameter
Remarks
Min
Typ
Max
Gm
Error Amplifier
Transconductance
V_FB = 1.0 V, V_COMP = 0.5 V
2400
A_VOL
Error Amplifier Voltage
Gain
65
V_IH-OVP
V_HYST-OVP
V_UVLO-HI-AVIN
OVP Tripping Threshold
OVP Hysteresis Window
AVIN UVLO Rising
Threshold
Output voltage rising threshold, % of
V_OUT
% of V_OUT
103.5
2.84
109.5
-4.3
2.93
115
2.987
V_UVLO-LO-AVIN
AVIN UVLO
FallingThreshold
2.66
2.73
2.83
V_{UVLO-HYS-AVIN}
AVIN UVLO Hysteresis
Window
195
V_VDD1
Internal LDO1 Output
Voltage
Measured At VDD1 Pin, 1 kΩ Load
4.88
C_OUT-VDD1
Recommended Bypass
Capacitance to VDD1 Pin
Ceramic Capacitor
1
I_Short-VDD1
VDD1 Pin Short Circuit
Current
31
V_VDD2
Internal LDO2 Output
Voltage
Measured At VDD2 Pin, 1 kΩ Load
2.47
C_OUT-VDD2
Recommended Bypass
Capacitance to VDD2 Pin
Ceramic Capacitor
100
I_Short-VDD2
VDD2 Pin Short Circuit
Current
47
VF_CBOOT-d
CBOOT Diode Forward
Voltage
Measured Between VDD1 and CBOOT
@ 10 mA
0.76
I_CBOOT
T_{Startup-Delay}
CBOOT Leakage Current
Soft Start Delay Time
V_CBOOT = 5.5 V, V_EN = 0 V
Measured From EN Rising Edge to
The Beginning of Internal Soft-Start
Ramp
0.65
160
T_Soft-Start
Internal Soft-Start Ramping ^{From 10% to 90% V}FB^{, V}FB ^{= 0.8 V}
1.9
3.4
5.3
Time
From 10% to 90% V_FB, V_FB = 1.0 V
2.4
4.3
6.2
OSCILLATOR
F_OSC-nom
Nominal Switching
Frequency
R_FRQ = 61.9 kΩ 0.025%
695
750
795
F_OSC-MAX
Maximum Switching
Frequency
R_FRQ = 28.4 kΩ
1500
F_OSC-MIN
Minimum Switching
Frequency
R_FRQ = 167.5 kΩ
300
T_OFF-MIN
Switch Node Minimum OFF f_S = 1.5 MHz, V_PVIN = 3.3 V, V_FB = 1.0
Time
V, Resistor Divider Ratio = 3.3
50
T_ON-MIN
Switch Node Minimum ON f_S = 1.5 MHz, V_FB = 0.6 V, Resistor
Time
Divider Ratio = 1
70
LOGIC
V_IH-EN
V_HYST-EN
I_EN-IN
V_IH-UV-PWROK
V_{HYST-UV-PWROK}
EN Pin Rising Threshold
EN Pin Hysteresis Window
EN Pin Input Current
PWROK UV Rising
Threshold
PWROK UV Hysteresis
Window
V_EN = 12 V
% of V_OUT
1.1
1.2
1.3
130
200
302
18
23
87.5
93
97.5
-4.2
Unit
µA/V
dB
%
V
V
mV
V
µF
mA
V
nF
mA
V
µA
µs
ms
kHz
ns
V
mV
µA
%
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