参数资料
型号: TPS54623RHLT
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 15 A SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14
封装: 3.50 X 3.50 MM, GREEN, PLASTIC, QFN-14
文件页数: 31/35页
文件大小: 1468K
代理商: TPS54623RHLT
13 BOOT
12 PH
11 PH
10 EN
9 SS/TR
GND 2
GND 3
PVIN 4
PVIN 5
VIN 6
7
8
1
14
RT/CLK
PWRGD
VSENSE
COMP
(15)
Exposed
Thermal Pad
SLVSB09
– SEPTEMBER 2011
DEVICE INFORMATION
PIN ASSIGNMENTS
RHL PACKAGE
(TOP VIEW)
PIN FUNCTIONS
PIN
DESCRIPTION
NAME
#
RT/CLK
1
Automatically selects between RT mode and CLK mode. An external timing resistor adjusts the switching
frequency of the device; In CLK mode, the device synchronizes to an external clock.
GND
2, 3
Return for control circuitry and low-side power MOSFET.
PVIN
4, 5
Power input. Supplies the power switches of the power converter.
VIN
6
Supplies the control circuitry of the power converter.
VSENSE
7
Inverting input of the gm error amplifier.
COMP
8
Error amplifier output, and input to the output switch current comparator. Connect frequency compensation to this
pin.
SS/TR
9
Slow-start and tracking. An external capacitor connected to this pin sets the internal voltage reference rise time.
The voltage on this pin overrides the internal reference. It can be used for tracking and sequencing.
EN
10
Enable pin. Float to enable. Adjust the input undervoltage lockout with two resistors.
PH
11, 12
The switch node.
BOOT
13
A bootstrap cap is required between BOOT and PH. The voltage on this cap carries the gate drive voltage for the
high-side MOSFET.
PWRGD
14
Power Good fault pin. Asserts low if output voltage is low due to thermal shutdown, dropout, over-voltage, EN
shutdown or during slow start.
Exposed
15
Thermal pad of the package and signal ground and it must be soldered down for proper operation.
Thermal
PAD
Copyright
2011, Texas Instruments Incorporated
5
Product Folder Link(s) :TPS54623
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