AP7372: Low-Noise, 20V, 200mA ULDO Regulator (Linear and Low Dropout (LDO) Regulators)

Description

The AP7372 is a low-dropout linear regulator that operates from 2.7V to 20V and delivers 200mA output current. The wide input voltage LDO is suitable for the regulation of high-performance analog and mixed-signal circuits operating from 19.5V to 1.2V rails.

The AP7372 features high power supply rejection, low noise, and achieves excellent line and load transient response with a small 2.2μF ceramic output capacitor. The output noise is 8μVrms, independent of the output voltage for the fixed options of 5V or less.

The AP7372 has 1.8V, 2.5V, 3.3V and 5.0V fixed output voltage. Each fixed output voltage can be adjusted above the initial set point with an external feedback divider. This allows the AP7372 to provide an output voltage from 1.2V to VIIN – VDO with high PSRR and low noise.

A programmable soft-start with an external capacitor is available in the AP7372. The AP7372 is available in U-WLB1012-6 (Type A1) package.

Feature(s)

Low noise: 8μVrms independent of fixed output voltage
High PSRR: 90dB @10kHz, 70dB @100kHz, 52dB @1MHz
Input voltage range: 2.7V to 20V
Maximum output current: 200mA
High output voltage accuracy: ±0.8%
Accuracy over line, load, and temperature ±1.8%, T_J = -40°C to +125°C
Low dropout voltage: 120mV @I_OUT = 200mA (typ)
User-programmable soft-start
Low quiescent current, I_GND: 66μA (typ)
Low shutdown current:
- 1μA @V_IN = 5V
- 3μA @V_IN = 20V
Stable with a 2.2μF ceramic output capacitor
Adjustable output from 1.2V to VIN – VDO, output can be adjusted above initial set point
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

Regulation to noise sensitive applications
- ADC and DAC circuits, precision amplifiers, power for VCO V_TUNE controls
Communications and infrastructures
Medical and healthcares
Industrials and instrumentations

Specifications & Technical Documents

Product Parameters

Iq (typ) (µA)	66
Iq (max) (?A)	110
AEC Qualified	No
Compliance (Only Automotive Supports PPAP)	Standard
Type	LDO
Output options	Adjustable & Fixed
Iout (A)	0.2
Vin (Max) (V)	20
Vin (Min) (V)	2.7
Vout (min)	1.2
Vout (max)	19.72
Fixed Vout (V)	1.2, 1.8, 2.5, 3.3, 5
Adjustable VFB (V)	1.2
Accuracy 25C	0.8
Noise uV RMS 10-100 kHz	8
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	0.28
PSRR (dB) 1kHz	90
Operating Temperature (Ambient) (°C)	-40 to 85
Enable Active	Yes (High)
Channels	1
Output Discharge	No
Power Good	No
Reverse Protection	No
VCTL Function	No

Technical Documents

Recommended Soldering Techniques

TN1.pdf

AP7372