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LMZ30604RKGR Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza LMZ30604RKGR
Descripción Electrónicos  4A SIMPLE SWITCHER Power Module with 2.95V-6V Input in QFN Package
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LMZ30604RKGR Datasheet(HTML) 3 Page - Texas Instruments

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LMZ30604
www.ti.com
SNVS998 – JULY 2013
ELECTRICAL CHARACTERISTICS
Over -40°C to 85°C free-air temperature, VIN = 3.3 V, VOUT = 1.8 V, IOUT = 4A,
CIN1 = 47 µF ceramic, CIN2 = 220 µF poly-tantalum, COUT1 = 47 µF ceramic, COUT2 = 100 µF poly-tantalum (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IOUT
Output current
TA = 85°C, natural convection
0
4
A
VIN
Input voltage range
Over IOUT range
2.95(1)
6
V
VIN = increasing
3.05
3.135
UVLO
VIN Undervoltage lockout
V
VIN = decreasing
2.5
2.75
VOUT(adj)
Output voltage adjust range
Over IOUT range
0.8
3.6
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 VIN 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 = 3.3V, fSW = 1 MHz
95%
VOUT = 2.5V, fSW = 1 MHz
93%
VOUT = 1.8V, fSW = 1 MHz
91%
VIN = 5 V
VOUT = 1.5V, fSW = 1 MHz
89%
IO = 2 A
VOUT = 1.2V, fSW =750 kHz
87%
VOUT = 1.0V, fSW = 650 kHz
85%
η
Efficiency
VOUT = 0.8V, fSW = 650 kHz
84%
VIN = 3.3V
VOUT = 1.8V, fSW = 1 MHz
90%
IO = 2 A
VOUT = 1.5V, fSW = 1 MHz
88%
VOUT = 1.2V, fSW = 750 kHz
87%
VOUT = 1.0V, fSW = 650 kHz
84%
VOUT = 0.8V, fSW = 650 kHz
82%
Output voltage ripple
20 MHz bandwith
9
mVPP
ILIM
Overcurrent threshold
7
A
Recovery time
80
µs
Transient response
1.0 A/µs load step from 1A to 3A
VOUT
90
mV
over/undershoot
VINH-H
Inhibit High Voltage
1.25
Open (3)
Inhibit Control
V
VINH-L
Inhibit Low Voltage
–0.3
1.0
II(stby)
Input standby current
INH pin to AGND
70
100
µA
Good
93%
VOUT rising
Fault
107%
PWRGD Thresholds
Power
Fault
91%
Good
VOUT falling
Good
105%
PWRGD Low Voltage
I(PWRGD) = 0.33 mA
0.3
V
fSW
Switching frequency
Over VIN and IOUT ranges, RT/CLK pin OPEN
400
500
600
kHz
fCLK
Synchronization frequency
500
2000
kHz
VCLK-H
CLK High-Level Threshold
2.2
3.3
V
CLK Control
VCLK-L
CLK Low-Level Threshold
-0.3
0.4
V
CLK_PW CLK Pulse Width
75(4)
ns
Thermal shutdown
175
°C
Thermal Shutdown
Thermal shutdown hysteresis
15
°C
(1)
The minimum VIN depends on VOUT and the switching frequency. Please refer to Table 7 for operating limits.
(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. Do not place an external pull-up resistor on this pin. If this pin is left open circuit, the device
operates when input power is applied. A small low-leakage MOSFET is recommended for control. See the application section for further
guidance.
(4)
The maximum synchronization clock pulse width is dependant on VIN, VOUT, and the synchronization frequency. See the
Synchronization (CLK) section for more information.
Copyright © 2013, Texas Instruments Incorporated
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