TPS73201-Q1 Datasheet, PDF (1/26 Pages) Texas Instruments – CAP-FREE NMOS 250-mA LOW-DROPOUT REGULATOR WITH REVERSE-CURRENT PROTECTION

TPS73201-Q1, TPS73215-Q1, TPS73216-Q1
TPS73218-Q1, TPS73225-Q1, TPS73230-Q1
TPS73233-Q1, TPS73250-Q1
www.ti.com ........................................................................................................................................................... SGLS303D – MAY 2005 – REVISED MARCH 2009
CAP-FREE NMOS 250-mA LOW-DROPOUT REGULATOR
WITH REVERSE-CURRENT PROTECTION
FEATURES
1
• Qualified for Automotive Applications
• Stable with No Output Capacitor or Any Value
or Type of Capacitor
• Input Voltage Range: 1.7 V to 5.5 V
• Ultralow Dropout Voltage:
40 mV Typ at 250 mA
• Excellent Load Transient Response—With or
Without Optional Output Capacitor
• New NMOS Topology Provides Low Reverse
Leakage Current
• Low Noise: 30 µV_RMS Typ (10 kHz to 100 kHz)
• 0.5% Initial Accuracy
• 1% Overall Accuracy (Line, Load, and
Temperature)
• Less Than 1 µA Max I_Q in Shutdown Mode
• Thermal Shutdown and Specified Min/Max
Current Limit Protection
• Available in Multiple Output Voltage Versions
– Fixed Outputs of 1.2 V, 1.5 V, 1.6 V, 1.8 V,
2.5 V, 3 V, 3.3 V, and 5 V
– Adjustable Outputs From 1.2 V to 5.5 V
– Custom Outputs Available
APPLICATIONS
• Portable/Battery-Powered Equipment
• Post-Regulation for Switching Supplies
• Noise-Sensitive Circuitry Such as VCOs
• Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
DESCRIPTION
The TPS732xx family of low-dropout (LDO) voltage
regulators uses a new topology: an NMOS pass
element in a voltage-follower configuration. This
topology is stable using output capacitors with low
ESR, and even allows operation without a capacitor.
It also provides high reverse blockage (low reverse
current) and ground pin current that is nearly constant
over all values of output current.
The TPS732xx uses an advanced BiCMOS process
to yield high precision while delivering low dropout
voltages and low ground pin current. Current
consumption, when not enabled, is under 1 µA and
ideal for portable applications. The extremely low
output noise (30 µV_RMS with 0.1 µF C_NR) is ideal for
powering VCOs. These devices are protected by
thermal shutdown and foldback current limit.
DBV PACKAGE
(TOP VIEW)
IN 1 5 OUT
GND 2
EN 3 4 NR/FB
DRB PACKAGE
(TOP VIEW)
OUT 1
NC 2
NR/FB 3
GND 4
8 IN
7 NC
6 NC
5 EN
NC – No internal connection
Optional
V_IN
IN
OUT
TPS732xx
EN GND NR
Optional
V_OUT
Optional
Typical Application Circuit for Fixed-Voltage Versions
Figure 1.
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2009, Texas Instruments Incorporated