Texas Instruments Evaluation Board for the LM10506 LM10506EVAL/NOPB LM10506EVAL/NOPB Datenbogen
Produktcode
LM10506EVAL/NOPB
C1
22 F
22 F
L3
2.2 H
1.1V to 3.6V
0.7V to1.335V
C6
L1
2.2 H
BUCK1
BUCK2
BUCK3
LDO
SPI
C
O
N
T
R
O
L
L
O
G
IC
a
n
d
R
EG
IST
ER
S
SW_B3
FB_B3
VIN_B3
FB_B2
SW_B2
VIN_B2
G
N
D
SW_B1
VIN_B1
LDO
FB_B1
CS
CLK
DO
DI
VIN
G
N
D
IRQ
VCOMP
L2
2.2 H
1.1V to 3.6V
C7
C5
4.7 F
C8
Power Supply
3.3/5.0V
V
CORE
600 mA
Host 3
Domain
Host 1
Domain
1.3A
V
CC
V
CCQ
400 mA
Host 2
Domain
LM10506
Host
Controller
V
HOST
100 mA
System
Control
C2
22 F
C3
22 F
3.2V
C4
4.7 F
COMP
Reset
STANDBY
H
/L
B2
H
/L
B3
G
N
D
VIN_IO
C9
2.2 F
`
IO input
supply
4.7 F
2.2 F
4.7 F
SNVS729E – SEPTEMBER 2011 – REVISED MARCH 2013
Figure 1. Typical Application Diagram
Overview
The LM10506 contains three buck converters and one LDO.
and
below list the output
characteristics of the power regulators. They explain the function of the H/L pins for B2 and B3 if tied High or
Low at startup, and show the part's behavior in standby. The tables also describe the SPI-programmable output
voltage range for each buck regulator as well as the maximum output current for the buck regulators and LDO.
Low at startup, and show the part's behavior in standby. The tables also describe the SPI-programmable output
voltage range for each buck regulator as well as the maximum output current for the buck regulators and LDO.
SUPPLY SPECIFICATION
Table 1. Output Voltage Configurations for LM10506, LM10506-C
V
OUT
if
V
OUT
if
V
OUT
if
Maximum
Typical
Regulator
H/L=High
H/L=Low
STANDBY=High
V
OUT
Comments
Output Current
Application
(B2, B3)
(B2, B3)
(STANDBY Mode)
1.1V to 3.6V;
Buck 1
(1)
3.0V
3.0V
Off
1.3A
V
CC
Flash
50 mV steps
1.1V to 3.6V;
Buck 2
(1)
3.0V
1.8V
Off
400 mA
V
CCQ
Interface
50 mV steps
0.7V to 1.335V;
Buck 3
(1)
1.2V
1.0V
V
NOM
- 7%
600 mA
V
CORE
Core
5mV steps
V
HOST
Reference for
LDO
3.2V
3.2V
3.2V
N/A
100 mA
controller
Digital
(1)
Default voltage values are determined when working in PWM mode. Voltage may be 0.8-1.6% higher when in PFM mode.
2
Copyright © 2011–2013, Texas Instruments Incorporated
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