TPS76801Q稳压片

O
Regulated output voltage
I
Feedback input voltage for adjustable device (no connect for fixed options)
GND/HSINK 11
GND/HSINK 12
Out
13
Out
14
FB/NC
15
PG
16
NC
17
NC
18
GND/HSINK 19
GND/HSINK 20
I/O
DESCRIPTION
Regulator ground
I
Enable input
I
Input voltage
I
Input voltage
O
Regulated output voltage
GND 1 EN 2 IN 3 IN 4
8 PG 7 FB/NC 6 OUT 5 OUT
100 50 0
-50 -100
1 0.5
0
LOAD TRANSIENT RESPONSE
Co = 10 µF TA = 25°C
0 100 200 300 400 500 600 700 800 900 1000 t - Time - µs
DESCRIPTION
This device is designed to have a fast transient response and be stable with 10µF low ESR capacitors. This combination provides high performance at a reasonable cost.
Copyright © 1999–2004, Texas Instruments Incorporated
TPS76815Q, TPS76818Q, TPS76825Q TPS76827Q, TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801Q
SLVS211J – JUNE 1999 – REVISED OCTOBER 2004

DESCRIPTION (CONTINUED)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76850) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.
TPS76833 DROPOUT VOLTAGE
vs FREE-AIR TEMPERATURE 103
IO
101 IO = 10 mA
100
10-1
Co = 10 µF
IO = 0
10-2 -60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
I O - Output Current - A
∆ VO - Change in Output Voltage - mV
PWP PACKAGE (TOP VIEW)
GND/HSINK 1 GND/HSINK 2
GND 3 NC 4 EN 5 IN 6 IN 7 NC 8
GND/HSINK 9 GND/HSINK 10
20 GND/HSINK 19 GND/HSINK 18 NC 17 NC 16 PG 15 FB/NC 14 OUT 13 OUT 12 GND/HSINK 11 GND/HSINK
NC − No internal connection
D PACKAGE (TOP VIEW)
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
2.8
TPS76828Q
TPS76828Q
2.7
TPS76827Q
TPS76827Q
2.5
TPS76825Q
TPS76825Q
1.8
TPS76818Q
TPS76818Q
1.5
TPS76815Q
TPS76815Q
Adjustable 1.2 V to 5.5 V
TPS76801Q
TPS76801Q
(1) The TPS76801 is programmable using an external resistor divider (see application information). The D and PWP packages are available taped and reeled. Add an R suffix to the device type (e.g., TPS76801QDR).
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.
2

IN EN
TPS76815Q, TPS76818Q, TPS76825Q TPS76827Q, TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801Q
SLVS211J – JUNE 1999 – REVISED OCTOBER 2004
IN EN
_ +
PG OUT
+
_
R1
Vref = 1.1834 V
R2
GND
3
TPS76815Q, TPS76818Q, TPS76825Q TPS76827Q, TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801Q
SLVS211J – JUNE 1999 – REVISED OCTOBER 2004
TJ 40°C to 125°C
AVAILABLE OPTIONS
OUTPUT VOLTAGE (V)
PACKAGED DEVICES(1)
TYP
TSSOP (PWP)
SOIC (D)
5.0
TPS76850Q
TPS76850Q
3.3
TPS76833Q
TPS76833Q
3.0
TPS76830Q
TPS76830Q
VI 0.1 µF
TPS768xx
6 IN
7 IN
5 EN
16 PG
14 OUT
13 OUT
GND 3
PG
VO Co† + 10 µF
† See application information section for capacitor selection details.
Figure 1. Typical Application Configuration (For Fixed Output Options)
FUNCTIONAL BLOCK DIAGRAM—Adjustable Version
PG _
+
OUT
+ _ Vref = 1.1834 V
R1 FB/NC
R2
GND
External to the device
FUNCTIONAL BLOCK DIAGRAM—Fixed-Voltage Version

TPS76815Q, TPS76818Q, TPS76825Q TPS76827Q, TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801Q
SLVS211J – JUNE 1999 – REVISED OCTOBER 2004