TLV62065DSGT Datasheet, PDF (1/27 Pages) Texas Instruments – 3-MHz 2A Step Down Converter in 2x2 SON Package

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TLV62065
SLVSAC4A – NOVEMBER 2010 – REVISED JULY 2012
3-MHz 2A Step Down Converter in 2x2 SON Package
Check for Samples: TLV62065
FEATURES
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•2 V_IN Range from 2.9V to 5.5V
• Up to 97% Efficiency
• Power Save Mode / 3MHz Fixed PWM Mode
• Output Voltage Accuracy in PWM Mode ±2.0%
• Output Capacitor Discharge Function
• Typical 18 µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• For Improved Feature Set See TPS62065
• Available in a 2x2x0.75mm SON
APPLICATIONS
• Point Of Load (POL)
• Notebooks, Pocket PCs
• Portable Media Players
• Set Top Box
DESCRIPTION
The TLV62065 is a high efficient synchronous step
down DC-DC converter. It provides up to 2.0A output
current.
With an input voltage range of 2.9V to 5.5V the
device is a perfect fit for power conversion from a 5V
or 3.3V system supply rail. The TLV62065 operates
at 3MHz fixed frequency and enters Power Save
Mode operation at light load currents to maintain high
efficiency over the entire load current range. For low
noise applications, TLV62065 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 1µA and an internal circuit
discharges the output capacitor.
TLV62065 operates with a 1.0µH inductor and 10µF
output capacitor.
The TLV62065 is available in a small 2x2x0.75mm 8-
pin SON package.
TYPICAL APPLICATION CIRCUIT
V_IN = 2.9 V to 5.5 V
TLV62065
PVIN
SW
AVIN
C_IN
10 mF
EN
MODE
FB
AGND
PGND
L
1.0 mH
R₁
360 kW
R₂
180 kW
V_OUT
1.8 V 2 A
C_ff
C_OUT
22 pF 10 mF
100
V_IN = 3.7 V
95
90
V_IN = 4.2 V
V_IN = 5 V
85
80
75
70
65
60
55
50
0
L = 1.2 mH (NRG4026T 1R2),
C_OUT = 22 mF (0603 size),
V_OUT = 3.3 V,
Mode: Auto PFM/PWM
0.25 0.5 0.75 1 1.25 1.5 1.75 2
I_L - Load Current - A
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2012, Texas Instruments Incorporated