TPS74401-EP Datasheet, PDF (1/26 Pages) Texas Instruments – 3.0-A ULTRA-LDO WITH PROGRAMMABLE SOFT-START

TPS744xx
TPS74401-EP
www.ti.com
TPS744xx
SBVS122B – MARCH 2010 – REVISED SEPTEMBER 2010
3.0-A ULTRA-LDO WITH PROGRAMMABLE SOFT-START
Check for Samples: TPS74401-EP
FEATURES
1
•2 Soft-Start (SS) Pin Provides a Linear Startup
with Ramp Time Set by External Capacitor
• 1% Accuracy Over Line, Load, and
Temperature
• Supports Input Voltages as Low as 0.9 V with
External Bias Supply
• Adjustable Output (0.8 V to 3.6 V)
• Ultra-Low Dropout: 115 mV at 3.0 A (typ)
• Stable with Any or No Output Capacitor
• Excellent Transient Response
• Available in 5 mm × 5 mm × 1 mm QFN
Package
• Active High Enable
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Military (–55°C/125°C)
Temperature Ranges⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
(1) Custom temperature ranges available
APPLICATIONS
• FPGA Applications
• DSP Core and I/O Voltages
• Post-Regulation Applications
• Applications with Special Start-Up Time or
Sequencing Requirements
• Hot-Swap and Inrush Controls
ADJUSTABLE VOLTAGE VERSION
V_IN
V_BIAS
C_IN
1mF
C_BIAS
1mF
IN
PG
EN
BIAS ^{TPS74401 OUT}
SS
GND
FB
C_SS
R₃
R₁
C_OUT
R₂
Optional
V_PG
V_OUT
V_IN
V_BIAS
FIXED VOLTAGE VERSION
C_IN
1mF
C_BIAS
1mF
IN
PG
EN
BIAS ^{TPS744xx OUT}
SS
C_SS
GND
SNS
V_PG
R₃
V_OUT
C_OUT
Optional
Figure 1. Typical Application Circuit
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated