LM2853MHX-1.8/NOPB National Semiconductor, LM2853MHX-1.8/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM2853MHX-1.8/NOPB
• Description: IC REG SYNC BUCK 3A 1.8V 14TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®, SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2853MHX-1.8/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 3A
• Frequency - Switching: 550kHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP Exposed Pad, 14-eTSSOP 14-HTSSOP
• For Use With: LM2853-1.8EVAL - BOARD EVAL LM2853-1.8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM2853MHX-1.8

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THERMAL CONTROLS
T
T
THERMAL RESISTANCE
θ
JA
SD
SD-HYS
Electrical Characteristics
apply over the full Junction Temperature Range (−40˚C to 125˚C). Minimum and Maximum limits are guaranteed through test,
design or statistical correlation. Typical values represent the most likely parametric norm at T
reference purposes only. Unless otherwise specified AVIN = PVIN = 5V. (Continued)
Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Range indicates conditions for which the device is
intended to be functional, but does not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. Test Method is per JESD22-AI14.
Note 3: V
Note 4: The enable pin is internally pulled up, so the LM2853 is automatically enabled unless an external enable voltage is applied.
Symbol
OUT
measured in a non-switching, closed-loop configuration at the SNS pin.
Thermal Shutdown Threshold
Hysteresis for Thermal
Shutdown
Junction to Ambient
Parameter
Specifications with standard typeface are for T
MXA14A
Conditions
4
Min
J
= 25˚C, and those in bold face type
J
= 25˚C and are provided for
Typ
165
10
38
Max
Units
˚C/W
˚C
˚C