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RT9187GQV

P1-P3P4-P6P7-P9
RT9187
4
DS9187-13 April 2017www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, P
D
@ T
A
= 25°C
VDFN-8L 3x3 --------------------------------------------------------------------------------------------------------------- 1.429W
SOP-8 (Exposed Pad) --------------------------------------------------------------------------------------------------- 1.33W
Package Thermal Resistance (Note 2)
VDFN-8L 3x3, θ
JC
--------------------------------------------------------------------------------------------------------- 8.2°C/W
VDFN-8L 3x3, θ
JA
---------------------------------------------------------------------------------------------------------- 70°C/W
SOP-8 (Exposed Pad), θ
JC
--------------------------------------------------------------------------------------------- 15°C/W
SOP-8 (Exposed Pad), θ
JA
---------------------------------------------------------------------------------------------- 75°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM -------------------------------------------------------------------------------------------------------------------------- 2kV
MM ---------------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage Accuracy
(Fixed Output Voltage)
V
OUT
I
OUT
= 10mA 1.5 0 1.5 %
Output Voltage Range (Adjustable) V
OUT_Adj
0.8 -- 4.5 V
Quiescent Current (Note 5) I
Q
V
EN
V
IH
, I
OUT
= 0mA -- 380 500 A
Standby Current (Note 6) I
STBY
V
EN
V
IL
,V
IN
= 3.3V -- 0.1 1 A
Current Limit I
LIM
R
LOAD
= 0.5, V
IN
= 3.3V 2 2.8 3 A
Dropout Voltage (Note 7) V
DROP
I
OUT
= 0.25A (Note 9)
-- 60 100
mV
I
OUT
= 0.5A -- 120 180
I
OUT
= 1.0A -- 240 360
Load Regulation (Note 8)
(Fixed Output Voltage)
V
LOAD
V
IN
= (V
OUT
+ 0.5V)
10mA < I
OUT
< 1.0A
-- 0.4 -- %/A
EN Threshold Voltage
Logic-Low V
IL
V
IN
= 3.3V -- -- 0.6
V
Logic-High V
IH
V
IN
= 3.3V 1.2 -- --
Enable Pin Current I
EN
V
IN
= 3.3V, enable -- 0.1 1 A
(V
IN
= V
OUT
+ 1V, V
EN
= V
IN
, C
IN
= C
OUT
= 2.2μF (Ceramic) & C
BP
= 10nF, T
A
= 25°C unless otherwise specified)
RT9187
5
DS9187-13 April 2017 www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. θ
JA
is measured in natural convection at T
A
= 25°C on a high effective thermal conductivity four-layer test board of
JEDEC 51-7 thermal measurement standard. The measurement case position of θ
JC
is on the exposed pad of the
package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. Quiescent, or ground current, is the difference between input and output currents. It is defined by I
Q
= I
IN
- I
OUT
under no
load condition (I
OUT
= 0mA). The total current drawn from the supply is the sum of the load current plus the ground pin
current.
Note 6. Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown signal (V
EN
>1.8V ).
Note 7. The dropout voltage is defined as V
IN
− V
OUT
, which is measured when V
OUT
is V
OUT(NORMAL)
−Σ 100mV.
Note 8. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices are tested for load
regulation in the load range from 10mA to 1.0A.
Note 9. Performance at -5°C ≤ T
A
≤ 85°C is assured by design.
Parameter Symbol Test Conditions Min Typ Max Unit
Power Supply
Rejection Rate
f = 100Hz
PSRR I
OUT
= 300mA
--
60
--
dB
f = 10kHz -- 50 --
Line Regulation
V
LINE
V
IN
= (V
OUT
+ 0.5) to 5.5V,
I
OUT
= 1mA
-- -- 0.3 %
Start-Up Time T
Start_Up
R
LOAD
= 3, 1nF C
BP
0.1F -- 40 -- s
Thermal Shutdown Temperature T
SD
-- 170 --
C
Thermal Shutdown Hysteresis T
SD
-- 30 --
ADJ
Reference Voltage Tolerance V
REF
0.784 0.8 0.816 V
ADJ Pin Current I
ADJ
V
ADJ
=
V
REF
-- 10 100 nA
RT9187
6
DS9187-13 April 2017www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Typical Operating Characteristics
(C
OUT
= 2.2μF/x5R, C
BP
= 10nF, unless otherwise specified )
Current Limit
Time (1ms/Div)
Output Current (A)
V
IN
= 3.3V
4
5
1
2
0
3
Quiescent Current vs. Temperature
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature
Quiescent Current (uA)
V
IN
= 3.3V
(°C)
-40
Dropout Voltage vs. Load Current
0
50
100
150
200
250
300
0.0 0.2 0.4 0.6 0.8 1.0
Load Current (A)
Dropout Voltage (mV)
T
J
= 25°C
T
J
= 125°C
T
J
= -40°C
V
OUT
= 2.8V
Quiescent Current vs. Input Voltage
0
100
200
300
400
500
33.544.555.5
Input Voltage (V)
Quiescent Current (uA)
V
IN
= 3.3V
Output Voltage (V) EN Pin Voltage (V)
Time (100us/Div)
EN Pin Shutdown Response
V
IN
= 3.3V, I
LOAD
: 560mA
5
10
2
4
0
0
Start Up
Output Voltage (V) EN Pin Voltage (V)
Time (25us/Div)
V
IN
= 3.3V
I
LOAD
: 560mA
2
4
1
2
0
0
P1-P3P4-P6P7-P9

RT9187GQV

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IC REG LINEAR POS ADJ 1A 8VDFN
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