Spark Logic

AZ1117C low dropout regulator pinout

GH15B is the documented SOT-223 marking for AZ1117CH-ADJTRG1. This family includes adjustable and six fixed outputs. Check the H, H2, R, R2 or D package code before using the pin map.

SOT-223 H 4 contacts
SOT-223 H2 4 contacts
SOT-89 R 4 contacts
SOT-89 R2 4 contacts

TO-252 D

4 contacts Current package

Diodes Incorporated · Order prefix AZ1117CD.

1.2 V fixed output. Marking: AZ1117CD-1.2G1; AZ1117CD-1.2G1 is also the tube order code.

TO-252 D pinout

TO-252 D
Marked side, tab above the body and pins 1–3 below, left to right.
Selected pin details

2 · OUT

Output · Outputs

Regulated output. Use an output capacitor rated for the voltage and effective capacitance in service.

Diodes DS36676 Rev. 5-2, p. 2

Electrical limits · Link to this pin

Wire the regulator for 1.2 V

  • Output
    • →
    • COUT.1
    • Meter positive
    • Via COUT 22 µF to Ground · CIN.2, COUT.2, Supply return, Meter common, GND (1)
Open this wiring example

Wire the regulator for 1.2 V

  • Input
    • CIN.1
    • Current-limited 3.2 V supply
  • Output
    • →
    • COUT.1
    • Meter positive
  • Ground
    • CIN.2
    • COUT.2
    • Supply return
    • Meter common
CIN 10 µF between Input and GroundInputCIN 10 µFGround
COUT 22 µF between Output and GroundOutputCOUT 22 µFGround

Connection guide

All 4 pins

PinSignalDirectionFunction
1GND ReturnReturn Reference and return for the fixed regulator. Connect to input and output capacitor returns.
2OUT OutputOutput Regulated output. Use an output capacitor rated for the voltage and effective capacitance in service.
3IN SupplySupply Positive input. Allow dropout headroom and place the input bypass near the regulator.
TABOUT TabTab Metal tab on the same net as pin 2.

Signal assignments

Electrical limits

ParameterLimitConditions and source
Nominal output1.2 V1.2 V Selected by the fixed-output order code. Diodes DS36676 Rev. 5-2, pp. 5–8, 11
Input voltage15 V maximum recommended15 V maximum recommended Maintain enough input-to-output headroom at the intended load. Diodes DS36676 Rev. 5-2, p. 4
Junction temperature−20 to +125 °C−20 to +125 °C Recommended operating range. Derate load for input–output voltage difference and board thermal resistance. Diodes DS36676 Rev. 5-2, p. 4
Dropout at 800 mA1.3 V max (SOT-223); 1.4 V max (TO-252)1.3 V max (SOT-223); 1.4 V max (TO-252) Specified at 1% output change. This table does not give the same guarantee for SOT-89. Diodes DS36676 Rev. 5-2, pp. 4–8
Output capacitor≥ 10 µF, ESR < 20 Ω≥ 10 µF, ESR < 20 Ω Low ESR ceramic is supported; account for DC bias. Diodes DS36676 Rev. 5-2, p. 3, note 4

Models and documents

The second line 816TI5 fits the SOT-223 YWWAXX traceability format (year digit 8, work week 16, assembly code T, batch suffix I5). The format does not identify the decade. The D variants share their electrical assignment, but the short center lead and package drawing options require checking the land pattern.

AZ1117CD-ADJTRG1
Adjustable output. Marking: AZ1117CD-ADJG1; AZ1117CD-ADJG1 is also the tube order code.
AZ1117CD-1.2TRG1
1.2 V fixed output. Marking: AZ1117CD-1.2G1; AZ1117CD-1.2G1 is also the tube order code.
AZ1117CD-1.5TRG1
1.5 V fixed output. Marking: AZ1117CD-1.5G1; AZ1117CD-1.5G1 is also the tube order code.
AZ1117CD-1.8TRG1
1.8 V fixed output. Marking: AZ1117CD-1.8G1; AZ1117CD-1.8G1 is also the tube order code.
AZ1117CD-2.5TRG1
2.5 V fixed output. Marking: AZ1117CD-2.5G1; AZ1117CD-2.5G1 is also the tube order code.
AZ1117CD-3.3TRG1
3.3 V fixed output. Marking: AZ1117CD-3.3G1; AZ1117CD-3.3G1 is also the tube order code.
AZ1117CD-5.0TRG1
5.0 V fixed output. Marking: AZ1117CD-5.0G1; AZ1117CD-5.0G1 is also the tube order code.
  • Datasheet for AZ1117C· DS36676 Rev. 5-2; see pp. 2–4 for wiring and pp. 11–12 for order and marking codes.
  • Source register· Original document URLs, revisions and file checksums.