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Rev.A.1
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TPL8032-S Series
20-V/300-mA Wide-Input High-PSRR
Ultra-low Noise LDO Regulator
Features
ï‚Ÿ Input Voltage Range: 2.5 V to 20 V
ï‚Ÿ Output Voltage Range:
− Adjustable Options: 1.22 V to 18 V
− Fixed Options: 1.5 V to 5 V
 ±2% Output Accuracy Over Line Regulation,
Load Regulation, and Operating Temperature
Range
ï‚Ÿ 300 mA Maximum Output Current
ï‚Ÿ Low Dropout Voltage: 550 mV Maximum at 300
mA
ï‚Ÿ High PSRR:
− 79 dB at 1 kHz
− 56 dB at 100 kHz
 5.68 μVRMS Output Voltage Noise
ï‚Ÿ Excellent Transient Response
 Stable with a 2.2-μF to 100-μF Ceramic Output
Capacitor
ï‚Ÿ Integrated Protection:
− Over-Current Protection
− Output Short-Circuit Protection
− Over-Temperature Protection
 Junction Temperature Range: –40°C to +125°C
ï‚Ÿ Package Options:
− SOT23-5
− ESOP8
− SOT89-3
Applications
ï‚Ÿ Low-noise Power Supply
ï‚Ÿ High-Definition Imaging System
ï‚Ÿ Infrared Image Equipment
ï‚Ÿ Medical Equipment
Description
The TPL8032 series products are 300-mA high PSRR,
ultra-low noise, and low-dropout linear regulators with
a 20-V wide input voltage range. The TPL8032 series
products support both adjustable output voltage
ranges from 1.22 V to 18 V with an external resistor
divider and fixed output voltage from 1.5 V to 5 V. The
TPL8032 series products are stable with a 2.2-μF to
100-μF ceramic output capacitor.
The TPL8032 series products have high PSRR with
79 dB at 1 kHz and 5.68 μVRMS ultra-low noise.
These features make the TPL8032 series suitable for
noise-sensitive applications, such as high-
performance analog devices or high-definition
imaging equipment, to suppress the large ripple and
noise generated from the previous stage power
supply. Besides, output short-circuit protection and
thermal protection features improve system reliability
under multiple operating conditions.
The TPL8032 series provides the SOT23-5 package,
the thermal-enhanced ESOP8 package, and the
SOT89-3 package with a guaranteed junction
temperature range from –40°C to +125°C.
Typical Application Circuit
V
IN
V
OUT
EN GND
Input
Off On
TPL8032
Fixed
C
OUT
Output
C
IN
Fixed Output
V
IN
V
OUT
EN
FB
GND
Input
Off On
TPL8032
ADJ
C
OUT
Output
C
IN
C
FF
R1
R2
Adjustable Output
www.3peakic.com.cn
Rev.A.1
2 / 22
TPL8032-S Series
20-V/300-mA Wide-Input High-PSRR
Ultra-low Noise LDO Regulator
Product Family Table
Generic Part Number
Output Voltage
Package
TPL8032-S
Adjustable
SOT23-5
TPL8032-S
Fixed 1.5 V
SOT23-5
TPL8032-S
Fixed 1.8 V
SOT23-5
TPL8032-S
Fixed 2.1 V
SOT23-5
TPL8032-S
Fixed 2.5 V
SOT23-5
TPL8032-S
Fixed 2.7 V
SOT23-5
TPL8032-S
Fixed 2.8 V
SOT23-5
TPL8032-S
Fixed 2.9 V
SOT23-5
TPL8032-S
Fixed 3.0 V
SOT23-5
TPL8032-S
Fixed 3.3 V
SOT23-5
TPL8032-S
Fixed 3.6 V
SOT23-5
TPL8032-S
Fixed 3.7 V
SOT23-5
TPL8032-S
Fixed 3.8 V
SOT23-5
TPL8032-S
Fixed 4.0 V
SOT23-5
TPL8032-S
Fixed 4.2 V
SOT23-5
TPL8032-S
Fixed 4.5 V
SOT23-5
TPL8032-S
Fixed 5.0 V
SOT23-5