Preliminary
RT9169
100mA, 4µA Quiescent Current CMOS LDO Regulator
µ
General Description
The RT9169 series are 100mA ultra-low quiescent
current CMOS low dropout (LDO) regulator designed
for battery-powered equipments. The output voltages
range from 1.2V to 5V with 0.1V per step.
The other features include 4µA ultra-low quiescent,
low dropout voltage, high output accuracy, current
limiting protection, and high ripple rejection ratio.
Features
Ultra-Low Quiescent Current: 4µA
µ
Low Dropout: 450mV at 100mA
Wide Operating Voltage Ranges: 2V~6V
Current Limiting Protection
Only 1µF Output Capacitor Required for
µ
Stability
High Power Supply Rejection Ratio
Ordering Information
RT9169-
Package type
ZL : TO-92 L Type
ZT : TO-92 T Type
X : SOT-89
V : SOT-23
CB : SOT-25
Operating temperature range
C: Commercial standard
Output voltage
12 : 1.2V
13 : 1.3V
:
49 : 4.9V
50 : 5.0V
Applications
Battery-Powered Equipment
Palmtops, Notebook Computers
Hand-held Instruments
PCMCIA Cards
Pin Configurations
Part Number
RT9169-
CZL
Pin Configurations
TOP VIEW
1. VIN
2. GND
3. VOUT
TOP VIEW
1. VOUT
2. VIN
3. GND
TOP VIEW
1. GND
2. VIN (TAB)
3. VOUT
TOP VIEW
1. VOUT
2. GND
3. VIN
TOP VIEW
5
4
(Plastic TO-92)
1 2 3
RT9169-
CZT
(Plastic TO-92)
1 2 3
Typical Application Circuit
RT9169
V
IN
C
IN
1
µ
F
VIN
GND
VOUT
C
OUT
1
µ
F
V
OUT
RT9169-
CX
1
2
3
(Plastic SOT-89)
RT9169-
CV
1
3
(Plastic SOT-23)
2
RT9169-
CB
(Plastic SOT-25)
1
2
3
1.
2.
3.
4.
5.
VIN
GND
EN
NC
VOUT
DS9169-02 October 2001
www.richtek-ic.com.tw
1
RT9169
Marking Information
Part Number
RT9169-12CX
RT9169-13CX
RT9169-14CX
RT9169-15CX
RT9169-16CX
RT9169-17CX
RT9169-18CX
RT9169-19CX
RT9169-20CX
RT9169-21CX
RT9169-22CX
RT9169-23CX
RT9169-24CX
RT9169-25CX
RT9169-26CX
RT9169-27CX
RT9169-28CX
RT9169-29CX
RT9169-30CX
RT9169-31CX
RT9169-32CX
RT9169-33CX
RT9169-34CX
RT9169-35CX
RT9169-36CX
RT9169-37CX
RT9169-38CX
RT9169-39CX
RT9169-40CX
RT9169-41CX
RT9169-42CX
RT9169-43CX
RT9169-44CX
RT9169-45CX
RT9169-46CX
RT9169-47CX
Marking
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
BG
BH
BJ
BK
BL
BM
BN
BP
BQ
BR
BS
BT
BU
BV
BW
BX
BY
BZ
C1
C2
C3
Preliminary
Part Number
RT9169-48CX
RT9169-49CX
RT9169-50CX
RT9169-12CZL
RT9169-13CZL
RT9169-14CZL
RT9169-15CZL
RT9169-16CZL
RT9169-17CZL
RT9169-18CZL
RT9169-19CZL
RT9169-20CZL
RT9169-21CZL
RT9169-22CZL
RT9169-23CZL
RT9169-24CZL
RT9169-25CZL
RT9169-26CZL
RT9169-27CZL
RT9169-28CZL
RT9169-29CZL
RT9169-30CZL
RT9169-31CZL
RT9169-32CZL
RT9169-33CZL
RT9169-34CZL
RT9169-35CZL
RT9169-36CZL
RT9169-37CZL
RT9169-38CZL
RT9169-39CZL
RT9169-40CZL
RT9169-41CZL
RT9169-42CZL
RT9169-43CZL
RT9169-44CZL
Marking
C4
C5
C6
RTD1
RTD2
RTD3
RTD4
RTD5
RTD6
RTD7
RTD8
RTD9
RTDA
RTDB
RTDC
RTDD
RTDE
RTDF
RTDG
RTDH
RTDJ
RTDK
RTDL
RTDM
RTDN
RTDP
RTDQ
RTDR
RTDS
RTDT
RTDU
RTDV
RTDW
RTDX
RTDY
RTDZ
www.richtek-ic.com.tw
DS9169-02 October 2001
2
Preliminary
Part Number
RT9169-45CZL
RT9169-46CZL
RT9169-47CZL
RT9169-48CZL
RT9169-49CZL
RT9169-50CZL
RT9169-12CZT
RT9169-13CZT
RT9169-14CZT
RT9169-15CZT
RT9169-16CZT
RT9169-17CZT
RT9169-18CZT
RT9169-19CZT
RT9169-20CZT
RT9169-21CZT
RT9169-22CZT
RT9169-23CZT
RT9169-24CZT
RT9169-25CZT
RT9169-26CZT
RT9169-27CZT
RT9169-28CZT
RT9169-29CZT
RT9169-30CZT
RT9169-31CZT
RT9169-32CZT
RT9169-33CZT
RT9169-34CZT
RT9169-35CZT
RT9169-36CZT
RT9169-37CZT
RT9169-38CZT
RT9169-39CZT
RT9169-40CZT
RT9169-41CZT
RT9169-42CZT
DS9169-02 October 2001
RT9169
Part Number
RT9169-43CZT
RT9169-44CZT
RT9169-45CZT
RT9169-46CZT
RT9169-47CZT
RT9169-48CZT
RT9169-49CZT
RT9169-50CZT
RT9169-12CV
RT9169-13CV
RT9169-14CV
RT9169-15CV
RT9169-16CV
RT9169-17CV
RT9169-18CV
RT9169-19CV
RT9169-20CV
RT9169-21CV
RT9169-22CV
RT9169-23CV
RT9169-24CV
RT9169-25CV
RT9169-26CV
RT9169-27CV
RT9169-28CV
RT9169-29CV
RT9169-30CV
RT9169-31CV
RT9169-32CV
RT9169-33CV
RT9169-34CV
RT9169-35CV
RT9169-36CV
RT9169-37CV
RT9169-38CV
RT9169-39CV
RT9169-40CV
Marking
RTEY
RTEZ
RTC7
RTC8
RTC9
RTCA
RTCB
RTCC
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
BG
BH
BJ
BK
BL
BM
BN
BQ
BR
BS
BT
BU
BV
BW
www.richtek-ic.com.tw
Marking
RTC1
RTC2
RTC3
RTC4
RTC5
RTC6
RTE1
RTE2
RTE3
RTE4
RTE5
RTE6
RTE7
RTE8
RTE9
RTEA
RTEB
RTEC
RTED
RTEE
RTEF
RTEG
RTEH
RTEJ
RTEK
RTEL
RTEM
RTEN
RTEP
RTEQ
RTER
RTES
RTET
RTEU
RTEV
RTEW
RTEX
3
RT9169
Part Number
RT9169-41CV
RT9169-42CV
RT9169-43CV
RT9169-44CV
RT9169-45CV
RT9169-46CV
Marking
BX
BY
BZ
CT
CU
CV
Preliminary
Part Number
RT9169-47CV
RT9169-48CV
RT9169-49CV
RT9169-50CV
RT9169-25CB
RT9169-28CB
Marking
CW
CX
CY
CZ
C1
C2
Pin Description
Pin Name
VIN
VOUT
GND
EN
Pin Function
Power Input
Output Voltage
Ground
Chip Enable Control Input
Function Block Diagram
VIN
Current
Limit
VOUT
+
_
EN
GND
Absolute Maximum Ratings
Input Voltage
Power Dissipation, P
D
@ T
A
= 25° C
TO-92
SOT-89
SOT-23
SOT-25
Operating Junction Temperature Range
Storage Range
Package Thermal Resistance
TO-92,
θ
JA
SOT-89,
θ
JC
SOT-89,
θ
JA
SOT-23,
θ
JA
SOT-25,
θ
JA
www.richtek-ic.com.tw
7V
0.6W
0.5W
0.25W
0.25W
-40°C to 125°C
-65°C to 150°C
160°C/W
100°C/W
300°C/W
250°C/W
250°C/W
DS9169-02 October 2001
4
Preliminary
Electrical Characteristics
(V
IN
= 5.5V, C
IN
= 1µF, C
OUT
= 1µF, T
A
= 25°C, unless otherwise specified)
Parameter
Input Voltage Range
Output Voltage Accuracy
Maximum Output Current
Current Limit
GND Pin Current
Symbol
V
IN
∆V
OUT
I
MAX
I
LIMIT
I
G
I
L
= 1mA
V
IN
= V
OUT
+ 0.6V, V
IN
≥
3.6V
R
LOAD
= 1Ω
No Load
I
OUT
= 100mA
I
OUT
= 1mA, V
IN
≥
3.6V
Dropout Voltage
V
DROP
I
OUT
= 50mA, V
IN
≥
3.6V
I
OUT
= 100mA, V
IN
≥
3.6V
Line Regulation
Load Regulation
Output Noise
Ripple Rejection
Standby Current
EN Threshold
RT9169-CB
∆V
LINE
V
IN
= (V
OUT
+ 0.3V) to 6V,
V
IN
≥
3.6V, I
OUT
= 1mA
--
--
--
-0.2
--
--
--
--
0.6
Test Conditions
Min
2
-2
100
--
--
Typ
--
--
--
250
4
4
4
200
450
--
0.01
250
50
0.1
1
RT9169
Max
6
+2
--
--
7
10
--
--
--
+0.2
0.04
--
--
1
2
Units
V
%
mA
mA
µA
µA
mV
%/V
%/mA
µV
DB
µA
V
∆V
LOAD
I
LOUT
= 0mA to 100mA
e
NO
PSRR
BW = 100Hz to 50KHz
C
OUT
= 10µF
F = 1KHz, C
OUT
= 10µF
EN = V
IN
Application Information
A 1µF (or larger) capacitor is recommended between
VOUT and GND for stability. The part may oscillate
without the capacitor. Any type of capacitor can be
used, but not Aluminum electrolytes when operating
below –25°C. The capacitance may be increased
without limit.
A 1µF capacitor (or larger) should be placed between
VIN to GND.
DS9169-02 October 2001
www.richtek-ic.com.tw
5
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