TLV62065-Q1_15 Datasheet, PDF (1/28 Pages) Texas Instruments – TLV62065-Q1 3-MHz 2-A Step-Down Converter in 2-mm × 2-mm WSON Package

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TLV62065-Q1
SLVSB92B – JANUARY 2012 – REVISED JUNE 2015
TLV62065-Q1 3-MHz 2-A Step-Down Converter in 2-mm × 2-mm WSON Package
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 2: –40°C to 105°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
• V_IN Range from 2.9 to 5.5 V
• Up to 97% Efficiency
• Power-Save Mode or Fixed Frequency PWM
Mode
• Output Voltage Accuracy in PWM Mode ±2%
• Output Capacitor Discharge Function
• Typical 18-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Available in a 2-mm × 2-mm × 0.75-mm WSON
2 Applications
• Automotive Infotainment and Cluster
• Advanced Driver Assistance System (ADAS)
• Automotive Display
3 Description
The TLV62065-Q1 device is a highly-efficient
synchronous step-down DC-DC converter with
adjustable output voltage. The device operates at a
switching frequency of 3 MHz and provides up to 2 A
of output current.
With an input voltage range of 2.9 to 5.5 V, the
device is a perfect fit for power conversion from a 5-V
or 3.3-V system supply rail. The TLV62065-Q1 device
enters power-save mode operation at light-load
currents to maintain high efficiency over the entire
load current range. For low-noise applications, the
TLV62065-Q1 device can be forced into fixed-
frequency PWM mode by pulling the MODE pin high.
In the shutdown mode, the current consumption is
reduced to less than 1 µA and an internal circuit
discharges the output capacitor.
The TLV62065-Q1 device operates with a 1-µH
inductor and 10-µF output capacitor.
The TLV62065-Q1 device is available in a small
2-mm × 2-mm × 0.75-mm 8-pin WSON package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62065-Q1
WSON (8)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit
V_IN = 2.9 to 5.5 V
PVIN
AVIN
C_IN
10 µF
EN
MODE
AGND
PGND
L
1 µH
SW
R₁
360 kΩ
FB
R₂
180 kΩ
V_OUT
1.8 V 2 A
C_ff
C_OUT
22 pF 10 µF
Efficiency vs. Load Current
100
95
90
85
80
75
70
65
60
L = 1.2 µH (NRG4026T 1R2)
55
C_OUT = 22 µF (0603 size)
V_OUT = 3.3 V
Mode: Auto PFM/PWM
50
0 0.25 0.5 0.75
1 1.25
Load Current (A)
V_IN = 3.7 V
V_IN = 4.2 V
V_IN = 5 V
1.5 1.75 2
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.