TPS61170-Q1_15 Datasheet, PDF (1/30 Pages) Texas Instruments – TPS61170-Q1 1.2-A High-Voltage Boost Converter in 2-mm × 2-mm SON Package

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TPS61170-Q1
SLVSAX2A – SEPTEMBER 2011 – REVISED JULY 2015
TPS61170-Q1 1.2-A High-Voltage Boost Converter in 2-mm × 2-mm SON Package
1 Features
•1 Qualified for Automotive Applications
• 3-V to 18-V Input Voltage Range
• High Output Voltage: Up to 38 V
• 1.2-A Integrated Switch
• 1.2-MHz Fixed Switching Frequency
• 12 V at 300 mA and 24 V at 150 mA from 5-V
Input (Typical)
• Up to 93% Efficiency
• On-The-Fly Output Voltage Reprogramming
• Skip-Switching Cycle for Output Regulation at
Light Load
• Built-in Soft Start
• 6-Pin, 2-mm × 2-mm SON Package
2 Applications
• HEV and EV Charger Systems
• Advanced Driver Assistance Systems (ADASs)
3 Description
The TPS61170-Q1 is a monolithic, high-voltage
switching regulator with integrated 1.2-A, 40-V power
MOSFET. The device can be configured in several
standard switching-regulator topologies, including
boost and SEPIC. The device has a wide input-
voltage range to support applications with input
voltage from multicell batteries or regulated 5-V, 12-V
power rails.
The TPS61170-Q1 operates at a 1.2-MHz switching
frequency, allowing the use of low-profile inductors
and low-value ceramic input and output capacitors.
External loop compensation components give the
user flexibility to optimize loop compensation and
transient response. The device has built-in protection
features, such as pulse-by-pulse overcurrent limit,
soft start, and thermal shutdown.
The FB pin regulates to a reference voltage of
1.229 V. The reference voltage can be lowered using
a 1-wire digital interface (EasyScale™ protocol)
through the CTRL pin. Alternatively, a pulse width-
modulation (PWM) signal can be applied to the CTRL
pin. The duty cycle of the signal reduces the
feedback reference voltage proportionally.
The TPS61170-Q1 is available in a 6-pin 2-mm ×
2-mm SON package, allowing a compact power-
supply solution.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61170-Q1
SON (6)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Typical Application
VIN 5 V
L1
10 mH
D1
VOUT 12 V/ 300 mA
C1
4.7 mF
TPS 61170
VIN
SW
R3
4.99 kW
C3
10 nF
CTRL
FB
COMP GND
R1
87.6 kW
C2
4.7 mF
R2
10 kW
L1: TOKO#A915_Y-100M
C1: Murata GRM188R61A475K
C2: Murata GRM21BR61E475K
D1: ONsemi MBR0540T1
*R3, C3: Compensation RC network
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.