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參數(shù)資料
| 型號： | TPS74812DRCT |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.5A LDO Linear Regulator with Programmable Soft-Start |
| 中文描述： | 1.5A的LDO線性穩(wěn)壓器，具有可編程軟啟動 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 351K |
| 代理商： | TPS74812DRCT |
www.ti.com
DEVICE INFORMATION
OUT
OUT
FB
SS
GND
10
9
8
7
6
IN
IN
PG
BIAS
EN
1
2
3
4
5
Thermal
Pad
PIN DESCRIPTIONS
TPS74801
SBVS074–JANUARY 2007
DRC PACKAGE
3mm x 3mm QFN
(TOP VIEW)
NAME
IN
DRC (SON)
1, 2
DESCRIPTION
Input to the device.
Enable pin. Driving this pin high enables the regulator. Driving this pin low puts the
regulator into shutdown mode. This pin must not be left unconnected.
Soft-Start pin. A capacitor connected on this pin to ground sets the start-up time. If this pin
is left unconnected, the regulator output soft-start ramp time is typically 200
μ
s.
Bias input voltage for error amplifier, reference, and internal control circuits.
Power-Good pin. An open-drain, active-high output that indicates the status of V
. When
V
OUT
exceeds the PG trip threshold, the PG pin goes into a high-impedance state. When
V
is below this threshold the pin is driven to a low-impedance state. A pull-up resistor
from 10k
to 1M
should be connected from this pin to a supply of up to 5.5V. The supply
can be higher than the input voltage. Alternatively, the PG pin can be left unconnected if
output monitoring is not necessary.
Feedback pin. The feedback connection to the center tap of an external resistor divider
network that sets the output voltage. This pin must not be left floating.
Regulated output voltage. No capacitor is required on this pin for stability.
Ground
Should be soldered to the ground plane for increased thermal performance.
EN
5
SS
7
BIAS
4
PG
3
FB
8
OUT
GND
9, 10
6
—
Thermal Pad
5
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