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LMZ31506HRUQT датащи(PDF) 4 Page - Texas Instruments

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номер детали LMZ31506HRUQT
подробное описание детали  6A SIMPLE SWITCHER Power Module with 4.5V-14.5V Input in QFN Package
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LMZ31506HRUQT датащи(HTML) 4 Page - Texas Instruments

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LMZ31506H
SNVS996 – JULY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
over -40°C to 85°C free-air temperature, PVIN = VIN = 12 V, VOUT = 1.8 V, IOUT = 6A,
CIN1 = 2x 22 µF ceramic, CIN2 = 68 µF poly-tantalum, COUT1 = 4x 47 µF ceramic (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IOUT
Output current
TA = 85°C, natural convection
0
6
A
VIN
Input bias voltage range
Over IOUT range
4.5
14.5
V
PVIN
Input switching voltage range
Over IOUT range
1.7(1)
14.5
V
VIN = increasing
4.0
4.5
UVLO
VIN Undervoltage lockout
V
VIN = decreasing
3.5
3.85
VOUT(adj)
Output voltage adjust range
Over IOUT range
1.2
5.5
V
Set-point voltage tolerance
TA = 25°C, IOUT = 0A
±1.0% (2)
Temperature variation
-40°C
≤ TA ≤ +85°C, IOUT = 0A
±0.3%
VOUT
Line regulation
Over PVIN range, TA = 25°C, IOUT = 0A
±0.1%
Load regulation
Over IOUT range, TA = 25°C
±0.1%
Total output voltage variation
Includes set-point, line, load, and temperature variation
±1.5% (2)
VOUT = 5V, fSW = 780kHz
93 %
VOUT = 3.3V, fSW = 630kHz
90 %
VOUT = 2.5V, fSW = 530kHz
89 %
PVIN = VIN = 12 V
IO = 3 A
VOUT = 1.8V, fSW = 480kHz
87 %
VOUT = 1.5V, fSW = 480kHz
85 %
η
Efficiency
VOUT = 1.2V, fSW = 480kHz
83 %
PVIN = VIN = 5 V
VOUT = 3.3V, fSW = 630kHz
94 %
IO = 3 A
VOUT = 2.5V, fSW = 530kHz
92 %
VOUT = 1.8V, fSW = 480kHz
90 %
VOUT = 1.5V, fSW = 480kHz
88 %
VOUT = 1.2V, fSW = 480kHz
86 %
Output voltage ripple
20 MHz bandwith
30
mVPP
ILIM
Overcurrent threshold
11
A
Recovery time
80
µs
Transient response
1.0 A/µs load step from 50 to 100% IOUT(max)
VOUT
60
mV
over/undershoot
VINH-H
Inhibit High Voltage
1.30
Open (3)
Inhibit Control
V
VINH-L
Inhibit Low Voltage
–0.3
1.05
INH Input current
INH < 1.1 V
-1.15
μA
INH Hysteresis current
INH > 1.26 V
-3.4
μA
II(stby)
Input standby current
INH pin to AGND
2
4
µA
Good
94%
VOUT rising
Fault
109%
PWRGD Thresholds
Power
Fault
91%
Good
VOUT falling
Good
106%
PWRGD Low Voltage
I(PWRGD) = 2 mA
0.3
V
fSW
Switching frequency
Over VIN and IOUT ranges, RT/CLK pin OPEN
400
480
560
kHz
fCLK
Synchronization frequency
480
780
kHz
VCLK-H
CLK High-Level Threshold
2.0
5.5
V
CLK Control
VCLK-L
CLK Low-Level Threshold
0.8
V
DCLK
CLK Duty cycle
20%
80%
Thermal shutdown
160
175
°C
Thermal Shutdown
Thermal shutdown hysteresis
10
°C
(1)
The minimum PVIN voltage is 1.7V or (VOUT+ 0.5V) , whichever is greater. VIN must be greater than 4.5V.
(2)
The stated limit of the set-point voltage tolerance includes the tolerance of both the internal voltage reference and the internal
adjustment resistor. The overall output voltage tolerance will be affected by the tolerance of the external RSET resistor.
(3)
This control pin has an internal pullup. If this pin is left open circuit, the device operates when input power is applied. A small low-
leakage (<300 nA) MOSFET is recommended for control. See the application section for further guidance.
4
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Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: LMZ31506H


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