TPS5602IDBT Datasheet, PDF (1/27 Pages) Texas Instruments – DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER

TPS5602
DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER
D Independent Dual Channels
D Hysteretic Control for Fast Transient
Response
D 4.5-V to 25-V Input Voltage Range
D Adjustable Output Voltage Down to 1.2 V
D Synchronous Rectifier Enables Efficiencies
of >95%
D Minimized External Component Count
D Separate Standby Control and Over Current
Protection
D Low Supply Current . . . 0.8 mA Typ
D 30-Pin TSSOP
D Low Standby Current (1-µA maximum)
D EVM Available (TPS5602EVM-121)
description
DBT PACKAGE
(TOP VIEW)
SLVS217 – JUNE 1999
INV1
1
NC
2
SOFTSTART1
3
NC
4
C_T
5
NC
6
GND
7
REF
8
STBY1
9
STBY2
10
V_CC
11
COMP
12
SOFTSTART2
13
NC
14
INV2
15
NC – No internal connection
30
LH1
29
OUT1_u
28
LL1
27
OUT1_d
26
OUTGND1
25
TRIP1
24
V_CC SENSE
23
TRIP2
22
Vref5
21
REG5V_IN
20
OUTGND2
19
OUT2_d
18
LL2
17
OUT2_u
16
LH2
The TPS5602 is a dual-channel synchronous
buck switch-mode power supply controller
featuring very fast feedback control and minimized component count. By using the hysteretic control method,
it is ideal for high-transient current applications, such as ’C6000 and multiple ’C54x DSPs. The TPS5602 is
designed specifically for DSP applications that require high efficiency. Since both channels are independent,
the up and down power sequencing can be easily achieved by properly setting the standby pins. The wide input
voltage and adjustable output voltage make the TPS5602 suitable for many applications.
typical design
5V
GND
+
C3
R3
R2
C1
D1
C4
L1
OUT1
1.8 V
C7
R5
C2
R6
R1
R4
C8
L2
C5
OUT2
3.3 V
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.
PRODUCTION DATA information is 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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  1999, Texas Instruments Incorporated
1