CSP-6
TPS6267x
www.ti.com
SLVS952 –APRIL 2010
500-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT < 0.4mm)
Check for Samples: TPS6267x
1
FEATURES
APPLICATIONS
23
•
92% Efficiency at 6MHz Operation
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Cell Phones, Smart-Phones
Camera Module Embedded Power
Digital TV, WLAN, GPS and Bluetooth™
Applications
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17mA Quiescent Current
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•
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Wide VIN Range From 2.3V to 4.8V
6MHz Regulated Frequency Operation
Spread Spectrum, PWM Frequency Dithering
Best in Class Load and Line Transient
±2% Total DC Voltage Accuracy
Low Ripple Light-Load PFM Mode
>50dB VIN PSRR (1kHz to 10kHz)
Simple Logic Enable Inputs
•
DC/DC Micro Modules
DESCRIPTION
The TPS6267x device is
a
high-frequency
synchronous step-down dc-dc converter optimized for
battery-powered portable applications. Intended for
low-power applications, the TPS6267x supports up to
500-mA load current, and allows the use of low cost
chip inductor and capacitors.
Supports External Clock Presence Detect
Enable Input
•
•
Three Surface-Mount External Components
Required (One 0603 MLCC Inductor, Two 0402
Ceramic Capacitors)
With a wide input voltage range of 2.3V to 4.8V, the
device supports applications powered by Li-Ion
batteries with extended voltage range. Different fixed
voltage output versions are available from 1.0V to
2.3V.
Complete Sub 0.33-mm Component Profile
Solution
Total Solution Size <10 mm2
The TPS6267x operates at a regulated 6-MHz
switching frequency and enters the power-save mode
operation at light load currents to maintain high
efficiency over the entire load current range.
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•
Available in a 6-Pin NanoFree™ (CSP)
Ultra-Thin Packaging, 0,4mm Max. Height
The PFM mode extends the battery life by reducing
the quiescent current to 17mA (typ) during light load
operation. For noise-sensitive applications, the device
has PWM spread spectrum capability providing a
lower noise regulated output, as well as low noise at
the input. These features, combined with high PSRR
and AC load regulation performance, make this
device suitable to replace a linear regulator to obtain
better power conversion efficiency.
100
200
V = 3.6 V,
I
90
V
= 1.8 V
180
O
80
70
60
50
40
30
20
160
140
120
100
80
V
V
OUT
1.8 V @ 500mA
TPS62671
VIN
BAT
2.3 V .. 4.8 V
L
SW
0.47 mH
60
C
I
40
FB
EN
C
O
2.2 mF
10
0
4.7 mF
20
0
MODE
GND
0.1
1
10
100
1000
I
- Load Current - mA
O
Figure 2. Smallest Solution Size Application
Figure 1. Efficiency vs. Load Current
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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.
2
3
NanoFree is a trademark of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated