Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- Typical Application
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- Typical Characteristics
- DETAILED DESCRIPTION
- OPERATION
- CONSTANT-FREQUENCY MODE OF OPERATION (SYNC = HIGH)
- POWER-SAVE MODE OF OPERATION (SYNC = LOW)
- SOFT START
- 100% DUTY-CYCLE, LOW-DROPOUT OPERATION
- Changed the ENABLE sectionENABLE
- UNDERVOLTAGE LOCKOUT
- THERMAL SHUTDOWN
- SYNCHRONIZATION
- POWER-GOOD COMPARATOR
- LOW-BATTERY DETECTOR (Standard Version)
- ENABLE/Low-Battery Detector (Enhanced Version) TPS62113 Only
- NO-LOAD OPERATION
- THEORY OF OPERATION / DESIGN PROCEDURE
- Inductor Selection
- OUTPUT-CAPACITOR SELECTION
- INPUT-CAPACITOR SELECTION
- FEEDFORWARD-CAPACITOR SELECTION
- RECOMMENDED CAPACITORS
- Layout Consideration
- APPLICATION INFORMATION
- Revision History

SYNC
GND PGND
SW
V
O
= 5 V
6.8 Hm
C = 22 F
10 V
O
m
VIN
LBI
C = 10 F
25 V
I
m
1 Fm
2
3
4
8
9
7
5
11 12
16
10
6
13
14
15
1
V = 5.5 V to 17 V
I
VIN
EN
VINA
PGNDGND
ET
Pad
AGND
TPS62112
SW
LBO
PG
1 MW
FB
O
O FB
FB
V
R1 R2
V V R1 R2 R2
R2 V
æ ö
+
= ´ = ´ -
ç ÷
è ø
SYNC
GND PGND
SW
R1
220 kW
R2
390 kW
V
O
= 1.8 V
6.8 Hm
C = 2 x 22 F
6.3 V
(See Note A)
O
m
VIN
LBI
C = 10 F
25 V
I
m
1 Fm
2
3
4
8
9
7
5
11 12
16
10
6
13
14
15
1
V = 3.5 V to 17 V
I
VIN
EN
VINA
PGNDGND
ET
Pad
R5
R6
AGND
TPS62110
SW
LBO
PG
R3
1 MW
R4
1 MW
FB
C
ff
10 pF
TPS62110, TPS62111
TPS62112, TPS62113
SLVS585D –JULY 2005–REVISED JANUARY 2014
www.ti.com
APPLICATION INFORMATION
A. For an output voltage lower than 2.5 V, an output capacitor of 33 μF or greater is recommended to improve load
transient performance.
Figure 21. Standard Connection for Adjustable Version
(7)
V
FB
= 1.153 V
Table 4. Recommended Resistors
OUTPUT VOLTAGE R1 R2 NOMINAL VOLTAGE TYPICAL C
ff
9 V 680 kΩ 100 kΩ 8.993 V 22 pF
5 V 510 kΩ 150 kΩ 5.073 V 10 pF
3.3 V 560 kΩ 300 kΩ 3.305 V 10 pF
2.5 V 390 kΩ 330 kΩ 2.515 V 10 pF
1.8 V 220 kΩ 390 kΩ 1.803 V 10 pF
1.5 V 100 kΩ 330 kΩ 1.502 V 10 pF
Figure 22. Standard Connection for Fixed-Voltage Version
20 Submit Documentation Feedback Copyright © 2005–2014, Texas Instruments Incorporated
Product Folder Links: TPS62110 TPS62111 TPS62112 TPS62113