TPS50301-HT_15 Datasheet, PDF (1/45 Pages) Texas Instruments – TPS50x01-xx 1.6- to 6.3-V Input, 3-A/6-A Synchronous Step-Down SWIFT™ Converter

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TPS50301-HT, TPS50601-SP
SLVSA94H – DECEMBER 2012 – REVISED JULY 2015
TPS50x01-xx 1.6- to 6.3-V Input, 3-A/6-A Synchronous Step-Down SWIFT™ Converter
1 Features
•1 Peak Efficiency: 95% (V_O = 3.3 V)
• Integrated 55-mΩ/50-mΩ MOSFETs
• Split Power Rail: 1.6 to 6.3 V on PVIN
• Power Rail: 3 to 6.3 V on VIN
• TPS50301-HT: 3 A
• TPS50601-SP: 6 A
• Flexible Switching Frequency Options:
– 100-kHz to 1-MHz Adjustable Internal
Oscillator
– External Sync Capability: 100 kHz to 1 MHz
– Sync Pin can be Configured as a 500-kHz
Output for Master/Slave Applications
• 0.795-V ±1.258% Voltage Reference at 25°C
• Monotonic Start-Up into Prebiased Outputs
• Adjustable Slow Start and Power Sequencing
• Power Good Output Monitor for Undervoltage and
Overvoltage
• Adjustable Input Undervoltage Lockout (UVLO)
• 20-Pin Thermally-Enhanced Ceramic Flatpack
Package (HKH)
• See www.ti.com/swift for SWIFT™ Documentation
• 5962R10221:
– Radiation Hardness Assurance (RHA) up to
TID 100 krad (Si)
– ELDRS Free 100 krad (Si) – 10 mRAD(Si)/s
– Single Event Latchup (SEL) Immune to
LET = 85 MeV-cm²/mg (See Radiation Report)
– SEB and SEGR Immune to 85 MeV-cm²/mg,
SOA Curve Available (See Radiation Report)
– SET/SEFI Cross-Section Plot Available (See
Radiation Report)
Efficiency vs Load Current, Vin = 5 V
1.00
0.95
Vo = 3.3 V
0.90
0.85
0.80
0.75
0.70
Vo = 1.2 V
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.00
1.00
2.00
3.00
4.00
5.00
6.00
IL- Load Current (A)
2 Applications
• Point of Load Regulation
• TPS50601-SP: Rad Tolerant Applications
• TPS50301-HT: Down-Hole Drilling
• Supports Harsh Environment Applications
• TPS50301-HT Available in Extreme (–55°C to
210°C) Temperature Range
• TPS50601-SP Available in Military (–55°C to
125°C) Temperature Range ⁽¹⁾
• TPS50301-HT: TI's High Temperature Products
use Highly-Optimized Silicon (Die) Solutions With
Design and Process Enhancements to Maximize
Performance over Extended Temperatures
• Engineering Evaluation (/EM) Samples are
Available ⁽²⁾
3 Description
The TPS50301-HT is a 6.3-V, 3-A and the
TPS50601-SP is a 6.3-V, 6-A synchronous step-down
converter, which is optimized for small designs
through high efficiency and integrating the high-side
and low-side MOSFETs. Further space savings are
achieved through current mode control, which
reduces component count, and a high switching
frequency, reducing the inductor's footprint. The
devices are offered in a thermally enhanced 20-pin
ceramic, dual in-line flatpack package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS50301-HT
CFP (20)
7.38 × 12.70 mm
TPS50601-SP
CFP (20)
KGD
7.38 × 12.70 mm
N/A⁽²⁾
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) Bare die in waffle pack
(1) Custom temperature ranges available
(2) These units are intended for engineering evaluation only.
They are processed to a non-compliant flow (that is no burn-
in, and so forth) and are tested to temperature rating of 25°C
only. These units are not suitable for qualification, production,
radiation testing or flight use. Parts are not warranted for
performance on full MIL specified temperature range of –55°C
to 125°C or operating life.
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.