TPS65070RSL

Manufacturer Part NumberTPS65070RSL
ManufacturerTexas Instruments, Inc.
TPS65070RSL datasheet
 


1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
Page 1/89

Download datasheet (2Mb)Embed
Next
www.ti.com
.......................................................................................................................................................................................................
Single Chip Power Solution for Navigation Systems
FEATURES
1
Charger/Power Path Management:
2
– 2A Output Current on the Power Path
– Linear Charger; 1.5A Maximum Charge
Current
– 100mA/500mA/ 800mA/1300mA Current
Limit From USB Input
– Thermal Regulation, Safety Timers
– Temperature Sense Input
3 Step-Down Converters:
– 2.25MHz Fixed Frequency Operation
– Up to 1.5A of Output Current
– Adjustable or Fixed Output Voltage
– V
Range From 2.8V to 6.3V
IN
– Power Save Mode at Light Load Current
– Output Voltage Accuracy in PWM Mode
±1.5%
– Typical 19 A Quiescent per Converter
– 100% Duty Cycle for Lowest Dropout
LDOs:
– Fixed Output Voltage
– Dynamic Voltage Scaling on LDO2
– 20 A Quiescent Current
– 200mA Maximum Output Current
– V
Range From 1.8V to 6.3V
IN
wLED Boost Converter:
– Internal Dimming Using I2C
– Up to 2 × 10 LEDs
– Up to 25mA per String With Internal Current
Sink
2
I
C Interface
10 Bit A/D Converter
1
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.
OMAP, PowerPAD are trademarks of Texas Instruments.
2
UNLESS
OTHERWISE
NOTED
this
document
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.
Touch Screen Interface
Undervoltage Lockout and Battery Fault
Comparator
APPLICATIONS
Portable Navigation Systems
PDAs, Pocket PCs
OMAP™ and Low Power DSP Supply
DESCRIPTION
The TPS6507x are single chip Power Management
ICs for portable applications consisting of a battery
charger with power path management for a single
Li-Ion or Li-Polymer cell. The charger can either be
supplied by a USB port on pin USB or by a dc voltage
from a wall adapter connected to pin AC. Three
highly efficient 2.25MHz step-down converters are
targeted at providing the core voltage, memory and
I/O voltage in a processor based system. The
step-down converters enter a low power mode at light
load for maximum efficiency across the widest
possible range of load currents. For low noise
applications the devices can be forced into fixed
frequency PWM using the I
step-down converters allow the use of small inductors
and capacitors to achieve a small solution size. The
TPS6507x also integrate two general purpose LDOs
for an output current of 200mA. These LDOs can be
used to power an SD-card interface and an
always-on rail, but can be used for other purposes as
well. Each LDO operates with an input voltage range
between 1.8V and 6.3V allowing them to be supplied
from one of the step-down converters or directly from
the main battery. An inductive boost converter with
two programmable current sinks power two strings of
white LEDs.
The TPS6507x come in a 48-pin leadless package
(6mm × 6mm QFN) with a 0,4mm pitch.
contains
TPS65070, TPS65072, TPS65073
TPS650731, TPS650732
SLVS950 – JULY 2009
2
C interface. The
Copyright © 2009, Texas Instruments Incorporated

TPS65070RSL Summary of contents