Datasheet 搜索 > DC/DC转换器 > TI（德州仪器） > TPS62046DGQR 数据手册 > TPS62046DGQR 数据手册 4/30 页
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TPS62046DGQR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
PowerPad-MSOP-10
描述:
1.2 / 1.25 MHz的高效率降压转换器 1.2 A/1.25 MHz, HIGH-EFFICIENCY STEP-DOWN CONVERTER
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P4Hot
典型应用电路图在P1P17
原理图在P5
封装尺寸在P18P19P21P22P23
型号编码规则在P2
标记信息在P2P18P19P20
封装信息在P18P19P20P21P22P23
技术参数、封装参数在P2
应用领域在P1P17P30
电气规格在P3
导航目录
TPS62046DGQR数据手册
Page:
of 30 Go
若手册格式错乱，请下载阅览PDF原文件
TPS62040
TPS62042, TPS62043
TPS62044, TPS62046
SLVS463B − JUNE 2003 − REVISED OCTOBER 2005
www.ti.com
4
PIN ASSIGNMENTS
1
2
3
4
5
10
9
8
7
6
EN
VIN
VIN
GND
FB
PGND
PGND
SW
SW
MODE
DGQ PACKAGE
(TOP VIEW)
NOTE
:
The PowerPAD must be connected to GND.
1
2
3
4
5
10
9
8
7
6
EN
VIN
VIN
GND
FB
PGND
PGND
SW
SW
MODE
DRC PACKAGE
(TOP VIEW)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O DESCRIPTION
EN 1 I Enable. Pulling EN to ground forces the device into shutdown mode. Pulling EN to V
I
enables the device. EN should
not be left floating and must be terminated.
VIN 2,3 I Supply voltage input
GND 4 Analog ground
FB 5 I Feedback pin. Connect FB directly to the output if the fixed output voltage version is used. For the adjustable version
an external resistor divider is connected to this pin. The internal voltage divider is disabled for the adjustable version.
MODE 6 I Pulling the MODE pin high allows the device to be forced into fixed frequency operation. Pulling the MODE pin to low
enables the power save mode where the device operates in fixed frequency PWM mode at high load currents and
in PFM mode (pulse frequency modulation) at light load currents.
SW 7,8 I/O This is the switch pin of the converter and is connected to the drain of the internal power MOSFETs
PGND 9,10 Power ground
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