Maxim
›
Products
›
Power
›
›
MAX38904A

MAX38904A

1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

The MAX38904 is a Low-Noise Linear Regulator that Delivers up to 2A of Output Current with only 5.1µVRMS of Output Noise

Data Sheet
Subscribe

Please check latest availability status for a specific part variant.

Overview

Description

The MAX38904 is a 1.7V–5.5V VIN, low-noise linear regulator that delivers up to 2A of output current with only 5.1µVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage.

The output voltage on MAX38904B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX38904B also includes an active-high POK signal for trouble-free load startup.

The MAX38904A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.

The wafer-level package (WLP) versions of the MAX38904 are available as C and D variants. The MAX38904C uses external feedback resistors for adjusting the output voltage, while the MAX38904D has factory preset output voltages over the range of 0.7V to 5.0V in 50mV steps.

All versions include a programmable output soft-start rate, output overcurrent, and thermal overload protection.

The MAX38904A/B are offered in a 3mm x 3mm, 14-pin TDFN package, while the MAX38904C/D are available in 5 x 3 bump, 2.2mm x 1.37mm WLP, 0.4mm pitch.

MAX38904A, MAX38904B, MAX38904C, MAX38904D: Simplified Functional Diagram MAX38904A, MAX38904B, MAX38904C, MAX38904D: Simplified Functional Diagram Enlarge+

Key Features

  • Delivers Flexible Operating Range
    • 1.7V to 5.5V Input Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 2A Maximum Output Current
    • 100mV Maximum Dropout at 2A Load
    • < 1.5µA Shutdown Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 5.1μVRMS Output Noise, 10Hz to 100kHz
    • 1.3mA Quiescent Supply Current
    • > 70dB PSRR at 10kHz
  • Enables Ease-of-Use and Robust Protection
    • Stable with 8µF (Min) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse Current Protection
    • Power-OK Status Pin
  • Reduces Size, Improves Reliability
    • 3mm x 3mm 14-pin TDFN Package and 2.2mm x 1.37mm, 5 x 3 Bump, 0.4mm Pitch WLP
    • -40°C to 125°C Operating Temperature

Applications/Uses

  • Communication Systems, Test Equipment, Medical Equipment
  • High-End Audio Systems
  • High-Resolution Data Acquisition Systems

Parametric Specs

Part NumberRegulatorsVIN
(V)		VIN
(V)		Preset VOUT
(V)		Adj. VOUT
(V)		Adj. VOUT
(V)		VDROPOUT @Rated ILOAD
(V)		Rated ILOAD
(mA)		Rated ILOAD
(mA)		ICC
(µA)		Ref. BypassLow Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)		WatchdogReverse Batt. Protect.Oper. Temp.
(°C)		Package/PinsBudgetary
Price
minmaxminmaxtypmaxnomSee Notes
MAX38904A NEW!11.75.51.2V to 5.0V0.650.0520002000-YesNoVout-9%NoNo-40 to +125
TDFN-CU/14
-
MAX38904B NEW!1.75.51.2V to 5.0V0.650.0520002000-YesVout-9%-40 to +125
TDFN-CU/14
$0.97 @1k
ICL7663 1.516-1.3160.9404010--
-40 to +85
-20 to +85
0 to +70
MET.CAN/8
PDIP/8
SOIC (N)/8
$1.88 @1k
ICL7663 1.516-1.3160.9404010--
-40 to +85
-20 to +85
0 to +70
MET.CAN/8
PDIP/8
SOIC (N)/8
$1.88 @1k
See All Linear Regulators (144)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources


MAX38904AEVK: Evaluation Kit for the MAX38904A

Quality and Environmental Data

Request Reliability Report for: MAX38904A 
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Order

 
Status:
Package:
Temperature:

Related Resources

New Products


MAX38902E
14μVRMS Low Noise 500mA LDO Linear Regulator

  • Delivers Flexible Operating Range
  • Reduces Noise and Improved Accuracy
  • Enables Easy-of-Use and Robust Protection

MAX38904A
1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

  • Delivers Flexible Operating Range
  • Reduces Noise and Improves Accuracy
  • Enables Ease-of-Use and Robust Protection

MAX38904B
1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

  • Delivers Flexible Operating Range
  • Reduces Noise and Improves Accuracy
  • Enables Ease-of-Use and Robust Protection

MAX38904C
1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

  • Delivers Flexible Operating Range
  • Reduces Noise and Improves Accuracy
  • Enables Ease-of-Use and Robust Protection

MAX38904D
1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

  • Delivers Flexible Operating Range
  • Reduces Noise and Improves Accuracy
  • Enables Ease-of-Use and Robust Protection

Reference Designs

Type ID Title
Evaluation Board10125MAX38904AEVK#TDFN Evaluation Kit for the MAX38904A
Evaluation Board10125MAX38904AEVK Evaluation Kit for the MAX38904A
Evaluation Board10111MAX38904BEVK#TDFN Evaluation Kit for the MAX38904B