Datasheet

Input Capacitor and Output Capacitor Selection for the LDOs
TPS65053
TPS650531
TPS650532
www.ti.com ............................................................................................................................................. SLVS754C – MARCH 2007 – REVISED SEPTEMBER 2009
Table 4. Typical Resistor Values
OUTPUT VOLTAGE R5 R6 NOMINAL VOLTAGE
3.3 V 300 k Ω 130 k Ω 3.31 V
3 V 300 k Ω 150 k Ω 3.00 V
2.85 V 240 k Ω 130 k Ω 2.85 V
2.80 V 360 k Ω 200 k Ω 2.80 V
2.5 V 300 k Ω 200 k Ω 2.50 V
1.8 V 240 k Ω 300 k Ω 1.80 V
1.5 V 150 k Ω 300 k Ω 1.50 V
1.3 V 36 k Ω 120 k Ω 1.30 V
1.2 V 100 k Ω 510 k Ω 1.19 V
1.1 V 33 k Ω 330 k Ω 1.1 V
The minimum input capacitor on VIN_LDO1 and on VIN_LDO2/3 is 2.2 µ F minimum. LDO1 is designed to be
stable with an output capacitor of 4.7 µ F minimum; whereas, LDO2 and LDO3 are stable with a minimum
capacitor value of 2.2 µ F.
Revision History
Changes from Original (March 2007) to Revision A ....................................................................................................... Page
• Added Output voltage range for LDO1, LDO2 and LDO3 to the Abs Max table ................................................................... 2
• Changed Output voltage range for LDO1 and LDO2 In the ROC table From: Max = V
INLDO1
, V
INLDO2
To: 3.6V ................... 2
Changes from Revision A (September 2007) to Revision B .......................................................................................... Page
• Changed the Functional Block Diagram - DCDC1 (I/O) Step-Down Converter From: 600 mA To: 1000 mA. ...................... 6
Changes from Revision B (February 2008) to Revision C ............................................................................................. Page
• Changed devices TPS650531 and TPS650532 to the Features and Ordering Information table. ....................................... 1
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Product Folder Link(s): TPS65053 TPS650531 TPS650532