Datasheet

SIP-8
(TOP VIEW)
SIP-8
(BOTTOMVIEW)
A1
B1
C1
A2
B2
C2
GND
MODE
VOUT
GND
A3
C3
VIN
EN
A3
C3
A2
B2
C2
GND
EN
VIN
GND
C1
VOUT
MODE
A1
B1
TPS82670 , TPS82671 , TPS82672 , TPS82673 , TPS82674 , TPS82675
TPS82676 , TPS82677 , TPS826711 , TPS826721 , TPS826745 , TPS826765
www.ti.com SLVSAI0H –OCTOBER 2010–REVISED OCTOBER 2014
7 Pin Configuration and Functions
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Pin Functions
PIN
I/O DESCRIPTION
NAME NO.
VOUT A1 O Power output pin. Apply output load between this pin and GND.
VIN A2, A3 I The VIN pins supply current to the TPS8267x internal regulator.
This is the enable pin of the device. Connect this pin to ground to force the converter into
EN B2 I shutdown mode. Pull this pin to V
I
to enable the device. This pin must not be left floating and
must be terminated.
This is the mode selection pin of the device. This pin must not be left floating and must be
terminated.
MODE = LOW: The device is operating in regulated frequency pulse width modulation mode
MODE B1 I
(PWM) at high-load currents and in pulse frequency modulation mode (PFM) at light load
currents.
MODE = HIGH: Low-noise mode is enabled and regulated frequency PWM operation is forced.
GND C1, C2, C3 – Ground pin.
8 Specifications
8.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN MAX UNIT
Voltage at VIN
(3)
–0.3 6
V
Voltage at VIN (TPS826721)
(3)
-0.3 5.5
V
I
(2)
Voltage at VOUT –0.3 3.6 V
Voltage at EN, MODE –0.3 V
IN
+ 0.3 V
Power dissipation Internally limited
T
A
Operating temperature range
(4)
–40 85 °C
T
INT
(max) Maximum internal operating temperature 125 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) Operation above 4.8V input voltage for extended periods may affect device reliability.
(4) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (T
A(max)
) is dependent on the maximum operating temperature (T
INT(max)
), the
maximum power dissipation of the device in the application (P
D(max)
), and the junction-to-ambient thermal resistance of the part/package
in the application (θ
JA
), as given by the following equation: T
A(max)
= T
J(max)
–(θ
JA
X P
D(max)
). To achieve optimum performance, it is
recommended to operate the device with a maximum internal temperature of 105°C.
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Product Folder Links: TPS82670 TPS82671 TPS82672 TPS82673 TPS82674 TPS82675 TPS82676 TPS82677
TPS826711 TPS826721 TPS826745 TPS826765