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LMZ30604RKGR Datasheet(PDF) 3 Page - Texas Instruments |
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LMZ30604RKGR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 25 page 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 Submit Documentation Feedback 3 Product Folder Links: LMZ30604 |
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