19-2182; Rev 0; 10/01
Precision, Low-Power, Low-Dropout, UCSP
Voltage Reference
General Description
Features
o 5-Bump UCSP Package (1.0mm ✕ 1.5mm ✕ 0.3mm)
o No Output Capacitor Needed
The MAX6023 is a family of low-dropout, micropower
voltage references in a 5-bump chip-scale (UCSP™)
package. The MAX6023 series-mode (three-terminal)
references, which operate with input voltages from 2.5V
o
0.ꢀ2 (maꢁ) ꢂIitiaꢃ ꢄccuracꢅ
to 12.6V (1.25V and 2.048V options) or (V
+ 0.2V) to
OUT
o 30ppm/°C (maꢁ) Temperature CoefficieIt
o 35µꢄ (maꢁ) QuiesceIt Suppꢃꢅ CurreIt
o 0.8µꢄ/V (maꢁ) Suppꢃꢅ CurreIt VariatioI with V
o 100mV Dropout at 500µꢄ Load CurreIt
o LiIe ReguꢃatioI: 160µV/V (maꢁ)
12.6V (all other voltage options), are available with out-
put voltage options of 1.25V, 2.048V, 2.5V, 3.0V,
4.096V, 4.5V, and 5.0V. These devices are guaranteed
an initial accuracy of 0.2ꢀ and 30ppmꢁ/C tempera-
ture drift over the -40/C to +85/C extended temperature
range.
ꢂN
UCSPs offer the benefit of moving to smaller footprint
and lower profile devices, significantly smaller than even
SC70 or SOT23 plastic surface-mount packages. The
significantly lower profile (compared to plastic SMD
packages) of the UCSP makes the device ideal for
height-critical applications. Miniature UCSP packages
also enable device placement close to sources and
allow more flexibility in a complex or large design layout.
o Output Voꢃtage OptioIs: 1.ꢀ5V, ꢀ.048V, ꢀ.5V, 3.0V,
4.096V, 4.5V, 5.0V
Ordering Information
BUMP-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
MAX6023EBK12-T
MAX6023EBK21-T
MAX6023EBK25-T
MAX6023EBK30-T
MAX6023EBK41-T
MAX6023EBK45-T
MAX6023EBK50-T
-40/C to +85/C
-40/C to +85/C
-40/C to +85/C
-40/C to +85/C
-40/C to +85/C
-40/C to +85/C
-40/C to +85/C
5 UCSP*-5
5 UCSP*-5
5 UCSP*-5
5 UCSP*-5
5 UCSP*-5
5 UCSP*-5
5 UCSP*-5
AAO
AAT
AAP
AAS
AAQ
AAR
AAU
The MAX6023 voltage references use only 27µA of sup-
ply current. And unlike shunt-mode (two-terminal) refer-
ences, the supply current of the MAX6023 family varies
only 0.8µAꢁV with supply-voltage changes, translating to
longer battery life. Additionally, these internally compen-
sated devices do not require an external compensation
capacitor and are stable up to 2.2nF of load capaci-
tance. The low-dropout voltage and the low supply cur-
rent make these devices ideal for battery-operated
systems.
*UCSP reliability is integrally linked to the user’s assembly meth-
ods, circuit board material, and environment. See the UCSP
Reliability Notice in the UCSP Reliability section of this data sheet
for more information.
Applications
Hand-Held Equipment
Data Acquisition Systems
Industrial and Process Control Systems
Battery-Operated Equipment
Hard-Disk Drives
Typical Operating Circuit
+SUPPLY INPUT (SEE SELECTOR GUIDE)
IN
REFERENCE
OUT
OUT
Selector Guide
*
PART
V
(V)
INPUT VOLTAGE (V)
OUT
MAX6023
MAX6023EBK12
MAX6023EBK21
MAX6023EBK25
MAX6023EBK30
MAX6023EBK41
MAX6023EBK45
MAX6023EBK50
1.250
2.048
2.500
3.000
4.096
4.500
5.000
2.5V to 12.6
2.5V to 12.6
GND
(V
OUT
(V
OUT
(V
OUT
(V
OUT
(V
OUT
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
*CAPACITOR IS OPTIONAL.
Pin Configuration appears at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.