TPS736_15 Datasheet, PDF (1/39 Pages) Texas Instruments – TPS736xx Cap-Free, NMOS, 400-mA Low-Dropout Regulator with Reverse Current Protection

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TPS736
SBVS038U – SEPTEMBER 2003 – REVISED JANUARY 2015
TPS736xx Cap-Free, NMOS, 400-mA Low-Dropout Regulator with Reverse Current
Protection
1 Features
•1 Stable with No Output Capacitor or Any Value or
Type of Capacitor
• Input Voltage Range of 1.7 V to 5.5 V
• Ultra-Low Dropout Voltage: 75 mV typ
• Excellent Load Transient Response—with or
without Optional Output Capacitor
• New NMOS Topology Delivers Low Reverse
Leakage Current
• Low Noise: 30 μV_RMS typ (10 Hz to 100 kHz)
• 0.5% Initial Accuracy
• 1% Overall Accuracy Over 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 1.20 V to 5.0 V
– Adjustable Output from 1.20 V to 5.5 V
– Custom Outputs Available
2 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
3 Description
The TPS736xx family of low-dropout (LDO) linear
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 TPS736xx uses an advanced BiCMOS process
to yield high precision while delivering very 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOT-23 (5)
2.90 mm x 1.60 mm
TPS736xx
SOT-223 (6)
6.50 mm x 3.50 mm
VSON (8)
3.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit for Fixed-Voltage Versions
Optional
Optional
V_IN
IN
OUT
V_OUT
TPS736xx
EN GND NR
ON
OFF
Optional
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.