LMZ30602_15 Datasheet, PDF (3/30 Pages) Texas Instruments – 2A SIMPLE SWITCHER® Power Module with 2.95V-6V Input in QFN Package

LMZ30602
www.ti.com
SNVS997 – JULY 2013
ELECTRICAL CHARACTERISTICS
Over -40°C to 85°C free-air temperature, VIN = 3.3 V, V_OUT = 1.8 V, I_OUT = 2A,
C_IN1 = 47 µF ceramic, C_IN2 = 220 µF poly-tantalum, C_OUT1 = 47 µF ceramic, C_OUT2 = 100 µF poly-tantalum (unless otherwise
noted)
PARAMETER
I_OUT
Output current
VIN
Input voltage range
UVLO VIN Undervoltage lockout
V_OUT(adj)
V_OUT
Output voltage adjust range
Set-point voltage tolerance
Temperature variation
Line regulation
Load regulation
Total output voltage variation
η
Efficiency
Output voltage ripple
I_LIM
Overcurrent threshold
Transient response
V_INH-H
V_INH-L
I_I(stby)
Inhibit Control
Input standby current
Power
Good
PWRGD Thresholds
PWRGD Low Voltage
f_SW
Switching frequency
f_CLK
Synchronization frequency
V_CLK-H CLK High-Level Threshold
V_CLK-L CLK Low-Level Threshold
CLK_PW CLK Pulse Width
Thermal Shutdown
TEST CONDITIONS
T_A = 85°C, natural convection
Over I_OUT range
VIN = increasing
VIN = decreasing
Over I_OUT range
T_A = 25°C, I_OUT = 0A
-40°C ≤ T_A ≤ +85°C, I_OUT = 0A
Over VIN range, T_A = 25°C, I_OUT = 0A
Over I_OUT range, T_A = 25°C
Includes set-point, line, load, and temperature variation
VIN = 5 V
I_O = 1 A
VIN = 3.3V
I_O = 1 A
20 MHz bandwith
V_OUT = 3.3V, f_SW = 1.5 MHz
V_OUT = 2.5V, f_SW = 1.5 MHz
V_OUT = 1.8V, f_SW = 1 MHz
V_OUT = 1.5V, f_SW = 1 MHz
V_OUT = 1.2V, f_SW =750 kHz
V_OUT = 1.0V, f_SW = 650 kHz
V_OUT = 0.8V, f_SW = 650 kHz
V_OUT = 1.8V, f_SW = 1 MHz
V_OUT = 1.5V, f_SW = 1 MHz
V_OUT = 1.2V, f_SW = 750 kHz
V_OUT = 1.0V, f_SW = 650 kHz
V_OUT = 0.8V, f_SW = 650 kHz
1.0 A/µs load step from 0.5A to 1.5A
Inhibit High Voltage
Inhibit Low Voltage
INH pin to AGND
V_OUT rising
V_OUT falling
I(PWRGD) = 0.33 mA
Over VIN and I_OUT ranges, RT/CLK pin OPEN
Recovery time
V_OUT
over/undershoot
Good
Fault
Fault
Good
CLK Control
Thermal shutdown
Thermal shutdown hysteresis
MIN
0
2.95 ⁽¹⁾
2.5
0.8
–0.3
400
500
2.2
-0.3
75 ⁽⁴⁾
TYP
MAX
2
6
3.05 3.135
2.75
3.6
±1.0% ⁽²⁾
±0.3%
±0.1%
±0.1%
±1.5% ⁽²⁾
95%
93%
92%
91%
90%
88%
87%
93%
92%
91%
89%
87%
9
3.5
80
UNIT
A
V
V
V
mV_PP
A
µs
45
mV
1.25 Open ⁽³⁾
V
1.0
70
100 µA
93%
107%
91%
105%
0.3
V
500
600 kHz
2000 kHz
3.3
V
0.4
V
ns
175
°C
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 R_SET 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, V_OUT, and the synchronization frequency. See the
Synchronization (CLK) section for more information.
Copyright © 2013, Texas Instruments Incorporated
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