Datasheet

LM2653
SNVS050E –NOVEMBER 1999–REVISED APRIL 2013 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)(2)(3)
Input Voltage 15V
PGOOD Pin Voltage 15V
Feedback Pin Voltage −0.4V ≤ V
FB
≤ 5V
Power Dissipation (T
A
=25°C)
(4)
893 mW
Junction Temperature Range −40°C ≤ T
J
≤ +125°C
Storage Temperature Range −65°C to +150°C
Lead Temperature PW Package Vapor Phase (60 sec.) 215°C
Infrared (15 sec.) 220°C
Maximum Junction Temperature 150°C
ESD Susceptibility Human Body Model
(3)
1 kV
(1) Absolute Maxmum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but device parameter specifications may not be specified under these conditions. For
specified specifications and test conditions, see Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
(4) The maximum allowable power dissipation is calculated by using P
DMAX
= (T
JMAX
− T
A
)/θ
JA
, where T
JMAX
is the maximum junction
temperature, T
A
is the ambient temperature, and θ
JA
is the junction-to-ambient thermal resistance of the specified package. The 893
mW rating results from using 150°C, 25°C, and 140°C/W for T
JMAX
, T
A
, and θ
JA
respectively. A θ
JA
of 140°C/W represents the worst-
case condition of no heat sinking of the 16-pin TSSOP package. Heat sinking allows the safe dissipation of more power. The Absolute
Maximum power dissipation must be derated by 7.14 mW per °C above 25°C ambient. The LM2653 actively limits its junction
temperatures to about 165°C.
Operating Ratings
(1)
Supply Voltage 4V ≤ V
IN
≤ 14V
(1) Absolute Maxmum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but device parameter specifications may not be specified under these conditions. For
specified specifications and test conditions, see Electrical Characteristics.
Electrical Characteristics
Specifications with standard typeface are for T
J
= 25°C, and those in boldface type apply over full Operating Temperature
Range. V
IN
= 10V unless otherwise specified.
Symbol Parameter Conditions Typical
(1)
Limit
(2)
Units
V
FB
Feedback Voltage I
LOAD
= 900 mA 1.238 V
1.200 V(min)
1.263 V(max)
V
OUT
Output Voltage Line V
IN
= 4V to 12V 0.2 %
Regulation I
LOAD
= 900 mA
Output Voltage Load I
LOAD
= 10 mA to 1.5A 1.3 %
Regulation V
IN
= 5V
Output Voltage Load I
LOAD
= 200 mA to 1.5A 0.3 %
Regulation V
IN
= 5V
V
INUV
V
IN
Undervoltage Lockout Rising Edge 3.8 V
Threshold Voltage 3.95 V(max)
V
UV_HYST
Hysteresis for the Input 210 mV
Undervoltage Lockout
I
CL
Switch Current Limit V
IN
= 5V 2.0 A
V
OUT
= 2.5V 1.55 A(min)
2.60 A(max)
I
SM
Sleep Mode Threshold Current V
IN
= 5V, V
OUT
= 2.5V 100 mA
(1) All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits
are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control
(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely norm.
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