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TPS62660 Datasheet(PDF) 4 Page - Texas Instruments

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No. de Pieza. TPS62660
Descripción  1000-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING
Descarga  27 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS62660 Datasheet(HTML) 4 Page - Texas Instruments

 
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GND
A1
B1
C1
A2
B2
C2
FB
SW
MODE
VIN
EN
TPS62660
CSP-6
(TOP VIEW)
MODE
C1
A2
B2
C2
A1
B1
VIN
EN
GND
FB
SW
TPS62660
CSP-6
(BOTTOMVIEW)
GateDriver
Anti
Shoot-Through
PowerSaveMode
SwitchingLogic
+
-
Frequency
Control
FB
R1
R2
SW
GND
Soft-Start
EN
VIN
CurrentLimit
Detect
Undervoltage
Lockout
BiasSupply
Bandgap
Thermal
Shutdown
NegativeInductor
CurrentDetect
VIN
MODE
V
= 0.8 V
REF
VREF
TPS6266x
SLVS871A – FEBRUARY 2010 – REVISED MARCH 2010
www.ti.com
PIN ASSIGNMENTS
PIN FUNCTIONS
PIN
I/O
DESCRIPTION
NAME
NO.
FB
C1
I
Output feedback sense input. Connect FB to the converter’s output.
VIN
A2
I
Power supply input.
SW
B1
I/O
This is the switch pin of the converter and is connected to the drain of the internal Power MOSFETs.
This is the enable pin of the device. Connecting this pin to ground forces the device into shutdown mode. Pulling
EN
B2
I
this pin to VI enables 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 (PWM) at high-load
MODE
A1
I
currents and in pulse frequency modulation mode (PFM) at light load currents.
MODE = HIGH: Low-noise mode enabled, regulated frequency PWM operation forced.
GND
C2
Ground pin.
FUNCTIONAL BLOCK DIAGRAM
4
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS6266x


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