參數(shù)資料
型號(hào): TPS79285
廠商: Texas Instruments, Inc.
英文描述: 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator
中文描述: 200mA低靜態(tài)電流,超低噪聲,高PSRR,低壓差線性穩(wěn)壓
文件頁(yè)數(shù): 5/18頁(yè)
文件大?。?/td> 377K
代理商: TPS79285
www.ti.com
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAMS
Thermal
Shutdown
UVLO
Current
Limit
2
μ
A
Overshoot
Detect
500k
Quickstart
1.193V
Bandgap
IN
EN
NR
OUT
GND
400
Thermal
Shutdown
UVLO
Current
Limit
3.3M
Overshoot
Detect
500k
1.193V
Bandgap
IN
EN
FB
OUT
GND
400
TPS79901, TPS79915, TPS79916, TPS79918
TPS79925, TPS79927, TPS79928, TPS799285
TPS79929, TPS79930, TPS79932, TPS79933
SBVS056C–JANUARY 2005–REVISED MAY 2005
Figure 1. Fixed Voltage Versions
Figure 2. Adjustable Voltage Versions
Table 1. PIN DESCRIPTIONS
TPS799xx
DDC
1
2
DESCRIPTION
NAME
IN
GND
YZU
C3
B2
Input supply.
Ground
Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator into
shutdown mode. EN can be connected to IN if not used.
Fixed voltage versions only; connecting an external capacitor to this pin bypasses noise generated
by the internal bandgap. This allows output noise to be reduced to very low levels.
Adjustable version only; this is the input to the control loop error amplifier, and is used to set the
output voltage of the device.
Output of the regulator. A small capacitor (total typical capacitance
2.0
μ
F ceramic) is needed from
this pin to ground to assure stability.
EN
3
A1
NR
4
A3
FB
4
A3
OUT
5
C1
5
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