TPS65218 Datasheet, PDF (1/87 Pages) Texas Instruments – Power Management

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TPS65218
SLDS206B – NOVEMBER 2014 – REVISED FEBRUARY 2016
TPS65218x Power Management for ARM^® Cortex™-A8/A9 SOCs and FPGA
1 Features
•1 Two Low-Quiescent Current, High Efficiency Step-
Down Converters for Battery Backup Domain
– DCDC5: 1.0 V Output
– DCDC6: 1.8 V Output
– VIN Range from 2.2 to 5.5 V
– Supplied from System Power or Coin-Cell
Backup Battery
• Three Adjustable Step-Down Converters With
Integrated Switching FETs:
– DCDC1: 1.1 V Default up to 1.8 A
– DCDC2: 1.1 V Default up to 1.8 A
– DCDC3: 1.2 V Default up to 1.8 A
– VIN Range from 2.7 to 5.5 V
– Adjustable Output Voltage Range 0.85 to 3.5 V
– Power Save Mode at Light Load Current
– 100% Duty Cycle for Lowest Dropout
– Active Output-Discharge When Disabled
• One Adjustable Buck-Boost Converter With
Integrated Switching FETs:
– DCDC4: 3.3 V Default up to 1.0 A
– VIN Range from 2.7 to 5.5 V
– Adjustable Output Voltage Range 0.85 to 3.4 V
– Active Output-Discharge When Disabled
• Adjustable General-Purpose LDO (LDO1)
– LDO1: 1.8 V Default up to 400 mA
– VIN Range from 1.8 to 5.5 V
– Adjustable Output Voltage Range from 0.9 to
3.4 V
– Active Output-Discharge When Disabled
• 5-V Load Switch With 100-mA/ 500-mA Selectable
Current Limit
– VIN Range From 3.0 to 5.5 V
– 500 mΩ (Max) Switch Impedance at 5 V
• Low Voltage Load Switch With 350-mA Current
Limit
– VIN Range From 1.2 to 3.6 V
– 110 mΩ (Max) Switch Impedance at 1.35 V
• High Voltage Load Switch (LS3) With 100-mA/
500-mA Selectable Current Limit
– VIN Range from 1.8 to 10.0 V
– 500 mΩ (Max) Switch Impedance
• Supervisor With Built-in Supervisor Function
Monitors
• Protection, Diagnostics, and Control:
– Undervoltage Lockout (UVLO)
– Always-on Push-Button Monitor
– Overtemperature Warning and Shutdown
– Separate Power-Good Output for Backup and
Main Supplies
– I²C Interface (Address 0x24h)
2 Applications
• Industrial Automation
• Point of Sale
• Test and Measurement
• Personal Navigation
3 Description
The TPS65218x is a single chip power management
IC, specifically designed to support both portable (Li-
Ion battery) and non-portable (5-V adapter)
applications. The device is characterized across a
–40°C to 105°C temperature range, making it suitable
for a wide range of industrial applications.
PART NUMBER
TPS65218
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
VQFN (48) 6.00 mm × 6.00 mm × 0.40 mm
HTQFP (48) 7.00 mm × 7.00 mm × 0.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
10µF
10µF
4.7µF
10µF
10µF
4.7µF
10µF
1.5µH
IN_
DCDC3
L3
100NŸ VIO
FB3
nWAKEUP
FB2
1.5µH
L2
100NŸ ^{IN_BIAS IN_DCDC2}
100NŸ VIO
PB
nINT
100NŸ
1.5µH
PWR_EN
FB1
L1
4.7µF
4.7µF
TPS65218
SYS_BU
L6
FB6
FB5
L5
PGOOD_BU
IN_nCC
DC34_SEL
PFI
DCDC4
L4B
L4A
1µF
10µH
10µH
22µF
22µF
20NŸ
82.2NŸ
17.8NŸ
100nF 47µF
1.5µH
10µF
4.7µF
10µF
4.7µF
4.7µF
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.