参数资料
型号: TPS62125DSGT
厂商: Texas Instruments
文件页数: 5/38页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.3A 8WSON
标准包装: 1
系列: DCS-Control™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1.2 V ~ 10 V
输入电压: 3 V ~ 17 V
PWM 型: 混合物
频率 - 开关: 1MHz
电流 - 输出: 300mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 标准包装
供应商设备封装: 8-WSON 裸露焊盘(2x2)
其它名称: 296-30461-6

PIN ASSIGNMENTS
DEVICE INFORMATION
DSG PACKAGE
(TOP VIEW)
SLVSAQ5C – MARCH 2012 – REVISED DECEMBER 2013
GND
VIN
EN
EN_hys
1
2
3
4
8
7
6
5
PG
SW
VOS
FB
PIN FUNCTIONS
NAME
GND
VIN
EN
PIN
NO.
1
2
3
I/O
PWR
PWR
IN
DESCRIPTION
GND supply pin.
V IN power supply pin.
Input pin for the enable comparator. Pulling this pin to GND turns the device into shutdown mode.
The DC/DC converter is enabled once the rising voltage on this pin trips the enable comparator
threshold, V TH EN ON of typ. 1.2V. The DC/DC converter is turned off once a falling voltage on this
pin trips the threshold, V TH EN OFF of typ. 1.15V. The comparator threshold can be increased by
connecting an external resistor to pin EN_hys. See also application section. This pin must be
terminated.
EN_hys
4
OUT
Enable Hysteresis Open-Drain Output. This pin is pulled to GND when the voltage on the EN pin is
below the comparator threshold V TH EN ON of typ. 1.2V and the comparator has not yet tripped. The
pin is high impedance once the enable comparator has tripped and the voltage at the pin EN is
above the threshold V TH EN ON . The pin is pulled to GND once the falling voltage on the EN pin
trips the threshold V TH EN OFF (1.15V typ.). This pin can be used to increase the hysteresis of the
enable comparator. If not used, tie this pin to GND, or leave it open.
FB
5
IN
This is the feedback pin for the regulator. An external resistor divider network connected to this pin
sets the output voltage. In case of fixed output voltage option, the resistor divider is integrated and
the pin need to be connected directly to the output voltage.
VOS
6
IN
This is the output voltage sense pin for the DCS - Control TM circuitry. This pin must be connected
to the output voltage of the DC/DC converter.
SW
7
OUT
This is the switch pin and is connected to the internal MOSFET switches. Connect the inductor to
this pin. Do not tie this pin to VIN, VOUT or GND.
PG
8
OUT
Open drain power good output. This pin is internally pulled to GND when the device is disabled or
the output voltage is below the PG threshold. The pin is floating when the output voltage is in
regulation and above the PG threshold. For Power Good indication, the pin can be connected via
a pull up resistor to a voltage rail up to 10V. The pin can sink a current up to 0.4mA and maintain
the specified high / low voltage levels. It can be used to discharge the output capacitor with up to
10mA. In this case the current into the pin must be limited with an appropriate pull up resistor.
More details can be found in the application section. If not used, leave the pin open, or connect to
GND.
Exposed
Thermal PAD
Exposed Thermal Pad. This pad must be connected to GND.
Copyright ? 2012–2013, Texas Instruments Incorporated
Product Folder Links : TPS62125
5
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